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John J. Wetter的作品

Cover for John J. Wetter · The Impacts of Research and Development Expenditures: The Relationship Between Total Factor Productivity and U.S. Gross Domestic Product Performance - Innovation, Technology, and Knowledge Management (Paperback Book) [2011 edition] (2012)

The Impacts of Research and Deve... (2012)

Cover for John J. Wetter · The Impacts of Research and Development Expenditures: The Relationship Between Total Factor Productivity and U.S. Gross Domestic Product Performance - Innovation, Technology, and Knowledge Management (Hardcover Book) [2011 edition] (2010)

The Impacts of Research and Deve... (2010)