Cita APA (7th ed.)

Jaffe, A. B., & Trajtenberg, M. (1996). Flows of knowledge from universities and federal labs: Modeling the flow of patent citations over time and across institutional and geographic boundaries. National Bureau of Economic Research.

Cita Chicago (17th ed.)

Jaffe, Adam B., i Manuel Trajtenberg. Flows of Knowledge from Universities and Federal Labs: Modeling the Flow of Patent Citations over Time and Across Institutional and Geographic Boundaries. Cambridge: National Bureau of Economic Research, 1996.

Cita MLA (9th ed.)

Jaffe, Adam B., i Manuel Trajtenberg. Flows of Knowledge from Universities and Federal Labs: Modeling the Flow of Patent Citations over Time and Across Institutional and Geographic Boundaries. National Bureau of Economic Research, 1996.