APA (7th ed.) Citation

Jaffe, A. B., & Trajtenberg, M. (1998). International knowledge flows: Evidence from patent citations. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Jaffe, Adam B., and Manuel Trajtenberg. International Knowledge Flows: Evidence from Patent Citations. Cambridge: National Bureau of Economic Research, 1998.

MLA (9th ed.) Citation

Jaffe, Adam B., and Manuel Trajtenberg. International Knowledge Flows: Evidence from Patent Citations. National Bureau of Economic Research, 1998.