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Jeff Heldt的作品

Cover for Jeff Heldt · Puzzle Games For Girls (Paperback Book) (2018)

Puzzle Games For Girls (2018)

Cover for Jeff Heldt · Quick Puzzle Games (Paperback Book) (2018)

Quick Puzzle Games (2018)

Cover for Jeff Heldt · Square Puzzles (Paperback Book) (2018)

Square Puzzles (2018)

Cover for Jeff Heldt · Puzzles for Brain Development (Book) (2018)

Puzzles for Brain Development (2018)

Cover for Jeff Heldt · Number Brain Teasers (Book) (2018)

Number Brain Teasers (2018)

Cover for Jeff Heldt · Mind Logic Games (Paperback Book) (2018)

Mind Logic Games (2018)

Cover for Jeff Heldt · Geometry Puzzles (Book) (2018)

Geometry Puzzles (2018)

Cover for Jeff Heldt · Maths Small Puzzles: Mathrax Puzzles - The Best Japanese Puzzles Collection - Math Puzzle Books (Paperback Book) (2018)

Maths Small Puzzles: Mathrax Puz... (2018)

Cover for Jeff Heldt · Fun Logic Games: Gyokuseki Puzzles - The Best Japanese Puzzles Collection - Logic Puzzle Books (Paperback Book) (2018)

Fun Logic Games: Gyokuseki Puzzl... (2018)

Cover for Jeff Heldt · Best Mind Teasers: Kakuro 8x8 Puzzles -The Best Japanese Puzzles Collection - Kakuro Puzzle Books (Paperback Book) [Large type / large print edition] (2018)

Large type / large print edition

Best Mind Teasers: Kakuro 8x8 Pu... (2018)

Cover for Jeff Heldt · Mathematical Puzzles For Children: Hundred Puzzles - The Best Japanese Puzzles Collection - Math Puzzle Books for Kids (Paperback Book) (2018)

Mathematical Puzzles For Childre... (2018)

Cover for Jeff Heldt · Block Puzzle Classic: Heyawake Puzzles - The Best Japanese Puzzles Collection - Logic Puzzle Books (Paperback Book) (2018)

Block Puzzle Classic: Heyawake P... (2018)

Cover for Jeff Heldt · Brain Tickler: Mathrax Puzzles - The Best Japanese Puzzles Collection - Logic Puzzle Books (Paperback Book) (2018)

Brain Tickler: Mathrax Puzzles -... (2018)

Cover for Jeff Heldt · Brain Teasers With Answers For Students: Kakuro 9x9 Puzzles - The Best Japanese Puzzles Collection - Kakuro Puzzle Books (Paperback Book) [Large type / large print edition] (2018)

Large type / large print edition

Brain Teasers With Answers For S... (2018)

Cover for Jeff Heldt · Kakuro Puzzle: The Best Japanese Puzzles Collection - Kakuro Puzzle Books (Paperback Book) [Large type / large print edition] (2018)

Large type / large print edition

Kakuro Puzzle: The Best Japanese... (2018)

Cover for Jeff Heldt · Block Puzzles: Patchwork Puzzles - The Best Japanese Puzzles Collection - Logic Puzzle Books (Paperback Book) (2018)

Block Puzzles: Patchwork Puzzles... (2018)

Cover for Jeff Heldt · Brain Teaser Games And Puzzles (Paperback Book) (2018)

Brain Teaser Games And Puzzles (2018)

Cover for Jeff Heldt · Brain Training Puzzles (Paperback Book) (2018)

Brain Training Puzzles (2018)

Cover for Jeff Heldt · Difficult Maths Puzzles With Answers (Paperback Book) (2018)

Difficult Maths Puzzles With Ans... (2018)

Cover for Jeff Heldt · Daily Maths Puzzle (Paperback Book) (2018)

Daily Maths Puzzle (2018)

Cover for Jeff Heldt · Complex Math Puzzles (Paperback Book) (2018)

Complex Math Puzzles (2018)

Cover for Jeff Heldt · 4th Grade Math Riddles (Paperback Book) (2018)

4th Grade Math Riddles (2018)

Cover for Jeff Heldt · Math Puzzles For Grade 6 (Paperback Book) (2018)

Math Puzzles For Grade 6 (2018)

Cover for Jeff Heldt · Math Puzzles For Grade 4 (Paperback Book) (2018)

Math Puzzles For Grade 4 (2018)

Cover for Jeff Heldt · Math Puzzles For Grade 7 (Paperback Book) (2018)

Math Puzzles For Grade 7 (2018)

Cover for Jeff Heldt · Quick Brain Teasers For Adults (Paperback Book) (2018)

Quick Brain Teasers For Adults (2018)

Cover for Jeff Heldt · Difficult Puzzle Games: Skyscraper Sudoku Puzzles - The Best Puzzles Collection - Brain Teaser Books (Paperback Book) (2018)

Difficult Puzzle Games: Skyscrap... (2018)

Cover for Jeff Heldt · Math Brain Teasers For Adults With Answers: Water Fun Puzzles - The Best Puzzles Collection - Brain Teaser Books (Paperback Book) (2018)

Math Brain Teasers For Adults Wi... (2018)

Cover for Jeff Heldt · Puzzles Based On Mathematics (Paperback Book) (2018)

Puzzles Based On Mathematics (2018)

Cover for Jeff Heldt · Simple Brain Teasers With Answers (Paperback Book) (2018)

Simple Brain Teasers With Answers (2018)

Cover for Jeff Heldt · Puzzle And Logic Games (Paperback Book) (2018)

Puzzle And Logic Games (2018)

Cover for Jeff Heldt · Mental Maths Puzzles: Nanro Puzzles - The Best Puzzles Collection - Logic and Math Puzzle Books (Paperback Book) (2018)

Mental Maths Puzzles: Nanro Puzz... (2018)

Cover for Jeff Heldt · Japanese Puzzle: Seismic Puzzles - The Best Puzzles Collection - Brain Teaser Books (Paperback Book) (2018)

Japanese Puzzle: Seismic Puzzles... (2018)

Cover for Jeff Heldt · Short Math Puzzles (Paperback Book) (2018)

Short Math Puzzles (2018)

Cover for Jeff Heldt · Maths Teasers For Adults: Pencilmark Sudoku Puzzles - The Best Puzzles Collection - Sudoku Puzzle Books (Paperback Book) (2018)

Maths Teasers For Adults: Pencil... (2018)

Cover for Jeff Heldt · Small Brain Teaser Puzzles (Book) (2018)

Small Brain Teaser Puzzles (2018)

Cover for Jeff Heldt · Puzzles And Brain Teasers With Answers (Paperback Book) (2018)

Puzzles And Brain Teasers With A... (2018)

Cover for Jeff Heldt · Easy Brain Teasers For Adults: Fillomino Puzzles - The Best Puzzles Collection - Brain Teaser Books (Paperback Book) (2018)

Easy Brain Teasers For Adults: F... (2018)

Cover for Jeff Heldt · Mind Teaser Games For Adults (Paperback Book) (2018)

Mind Teaser Games For Adults (2018)

Cover for Jeff Heldt · Math Logic Puzzles For Adults: Roma Puzzles - The Best Puzzles Collection - Logic Puzzle Books (Paperback Book) (2018)

Math Logic Puzzles For Adults: R... (2018)

Cover for Jeff Heldt · Brain Stimulating Games (Paperback Book) (2018)

Brain Stimulating Games (2018)

Cover for Jeff Heldt · Crazy Puzzles: Country Road Puzzles - The Best Puzzles Collection - Brain Teaser Books (Paperback Book) (2018)

Crazy Puzzles: Country Road Puzz... (2018)

Cover for Jeff Heldt · Best Puzzle Games: Canal View Puzzles - The Best Puzzles Collection - Brain Teaser Puzzles (Paperback Book) (2018)

Best Puzzle Games: Canal View Pu... (2018)

Cover for Jeff Heldt · Brain Challenges for Adults (Book) (2018)

Brain Challenges for Adults (2018)

Cover for Jeff Heldt · Challenging Brain Teasers For Adults: Kuroshiro Puzzles - The Best Puzzles Collection - Brain Teaser Puzzles (Paperback Book) (2018)

Challenging Brain Teasers For Ad... (2018)

Cover for Jeff Heldt · Best Maths Puzzles With Answers (Paperback Book) (2018)

Best Maths Puzzles With Answers (2018)

Cover for Jeff Heldt · Puzzles Based On Maths (Paperback Book) (2018)

Puzzles Based On Maths (2018)

Cover for Jeff Heldt · Mental Games (Paperback Book) (2018)

Mental Games (2018)

Cover for Jeff Heldt · Ying - Yang Puzzles (Paperback Book) (2018)

Ying - Yang Puzzles (2018)

Cover for Jeff Heldt · Mathematical Brain Teasers (Paperback Book) (2018)

Mathematical Brain Teasers (2018)

Cover for Jeff Heldt · Mind Games (Paperback Book) (2018)

Mind Games (2018)

Cover for Jeff Heldt · Slide Puzzles (Paperback Book) (2018)

Slide Puzzles (2018)

Cover for Jeff Heldt · Mathematics Puzzle Games With Answers (Paperback Book) (2018)

Mathematics Puzzle Games With An... (2018)

Cover for Jeff Heldt · Fun Puzzles To Solve (Paperback Book) (2018)

Fun Puzzles To Solve (2018)

Cover for Jeff Heldt · Fun Puzzle Games (Paperback Book) (2018)

Fun Puzzle Games (2018)

Cover for Jeff Heldt · Hard Mind Puzzles (Paperback Book) (2018)

Hard Mind Puzzles (2018)

Cover for Jeff Heldt · Math Games (Paperback Book) (2018)

Math Games (2018)

Cover for Jeff Heldt · Great Brain Teasers (Paperback Book) (2018)

Great Brain Teasers (2018)

Cover for Jeff Heldt · Fun Puzzle Games For Adults (Paperback Book) (2018)

Fun Puzzle Games For Adults (2018)

Cover for Jeff Heldt · Fun Brain Teaser Games (Paperback Book) (2018)

Fun Brain Teaser Games (2018)

Cover for Jeff Heldt · Fun Mind Games (Paperback Book) (2018)

Fun Mind Games (2018)

Cover for Jeff Heldt · Small Mind Puzzles (Paperback Book) (2018)

Small Mind Puzzles (2018)

Cover for Jeff Heldt · Fun Brain Games (Paperback Book) (2018)

Fun Brain Games (2018)

Cover for Jeff Heldt · Brain Teasers And Riddles For Adults (Paperback Book) (2018)

Brain Teasers And Riddles For Ad... (2018)

Cover for Jeff Heldt · Brain Teasers And Answers For Adults (Paperback Book) (2018)

Brain Teasers And Answers For Ad... (2018)

Cover for Jeff Heldt · Best Brain Games (Paperback Book) (2018)

Best Brain Games (2018)

Cover for Jeff Heldt · Easy Mathematical Puzzles (Paperback Book) (2018)

Easy Mathematical Puzzles (2018)

Cover for Jeff Heldt · Easy Maths Puzzles With Answers (Paperback Book) (2018)

Easy Maths Puzzles With Answers (2018)

Cover for Jeff Heldt · Brain Teasers And Games (Paperback Book) (2018)

Brain Teasers And Games (2018)

Cover for Jeff Heldt · Brain Logic Puzzles: Nurikabe Puzzles - 100 Large Print Puzzles - Brain Games and Puzzles (Paperback Book) (2018)

Brain Logic Puzzles: Nurikabe Pu... (2018)

Cover for Jeff Heldt · 5th Grade Math Puzzles: Tents Puzzles - 100 Large Print Puzzles - Brain Games for Kids (Paperback Book) (2018)

5th Grade Math Puzzles: Tents Pu... (2018)