APA aipamena

Marcus, B. W. (1992). Competing for clients in the nineties.

Chicago Style aipamena

Marcus, Bruce W. Competing for Clients in the Nineties. :, 1992.

MLA aipamena

Marcus, Bruce W. Competing for Clients in the Nineties. 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.