APA aipamena

Robinson, D. (2009). Business etiquette (2nd ed.). Kogan Page India.

Chicago Style aipamena

Robinson, David. Business Etiquette. 2nd ed. New Delhi: Kogan Page India, 2009.

MLA aipamena

Robinson, David. Business Etiquette. 2nd ed. Kogan Page India, 2009.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.