APA (7th ed.) Citation

Keller, W. (1999). How trade patterns and technology flows affect productivity growth. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Keller, Wolfgang. How Trade Patterns and Technology Flows Affect Productivity Growth. Cambridge, MA: National Bureau of Economic Research, 1999.

MLA (9th ed.) Citation

Keller, Wolfgang. How Trade Patterns and Technology Flows Affect Productivity Growth. National Bureau of Economic Research, 1999.

Warning: These citations may not always be 100% accurate.