Παραπομπή APA

Viva career skills library. (2007). Professional ethics and etiquette/2e (2nd ed.). Viva books.

Παραπομπή Chicago Style

Viva career skills library. Professional Ethics and Etiquette/2e. 2nd ed. New Delhi: Viva books, 2007.

Παραπομπή MLA

Viva career skills library. Professional Ethics and Etiquette/2e. 2nd ed. Viva books, 2007.