Hamberg, D. (1966). R & D: Essays on the economics of research and development. Random House.
Čikaški stil citiranja (17. izdanje)Hamberg, Daniel. R & D: Essays on the Economics of Research and Development. New York: Random House, 1966.
MLA način citiranja (9. izdanje)Hamberg, Daniel. R & D: Essays on the Economics of Research and Development. Random House, 1966.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.