Παραπομπή APA

Marcus, B. W. (1992). Competing for clients in the 90's. Mc Graw Hill.

Παραπομπή Chicago Style

Marcus, Bruce W. Competing for Clients in the 90's. London: Mc Graw Hill, 1992.

Παραπομπή MLA

Marcus, Bruce W. Competing for Clients in the 90's. Mc Graw Hill, 1992.