APA (7th ed.) Zitazioa
ebrary, Inc, & Hickman, B. G. (1992). International productivity and competitiveness. Oxford University Press.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta Bert G. Hickman. International Productivity and Competitiveness. New York: Oxford University Press, 1992.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta Bert G. Hickman. International Productivity and Competitiveness. Oxford University Press, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.