APA (7e ed.) Bronvermelding

Lichtenberg, F., & Potterie, B. v. P. d. l. (1996). International R & D spillovers: A re-examination. National Bureau of Economic Research.

Chicago (17e ed.) Bronvermelding

Lichtenberg, Frank, en Bruno van Pottelsberghe de la Potterie. International R & D Spillovers: A Re-examination. Cambridge: National Bureau of Economic Research, 1996.

MLA (9e ed.) Bronvermelding

Lichtenberg, Frank, en Bruno van Pottelsberghe de la Potterie. International R & D Spillovers: A Re-examination. National Bureau of Economic Research, 1996.