APA (7th ed.) Citation

Keller, W. (2000). Geographic localization of international technology diffusion. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Keller, Wolfgang. Geographic Localization of International Technology Diffusion. Cambridge, MA: National Bureau of Economic Research, 2000.

MLA (9th ed.) Citation

Keller, Wolfgang. Geographic Localization of International Technology Diffusion. National Bureau of Economic Research, 2000.