Παραπομπή σε μορφή APA (7η εκδ.)

Adams, J. D. (2000). Endogeneous R%D spillovers and industrial research productivity. National Bureau of Economic Research.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Adams, James D. Endogeneous R%D Spillovers and Industrial Research Productivity. Cambridge: National Bureau of Economic Research, 2000.

Παραπομπή σε μορφή MLA (9th εκδ.)

Adams, James D. Endogeneous R%D Spillovers and Industrial Research Productivity. National Bureau of Economic Research, 2000.