Παραπομπή APA

Goldstein, A. (1992). Secrets of overcoming sales resistance (7th ed.). Vikas.

Παραπομπή Chicago Style

Goldstein, Albert. Secrets of Overcoming Sales Resistance. 7th ed. New Delhi: Vikas, 1992.

Παραπομπή MLA

Goldstein, Albert. Secrets of Overcoming Sales Resistance. 7th ed. Vikas, 1992.