APA aipamena

Dunckel, J. (1994). Business etiquette. Lancer.

Chicago Style aipamena

Dunckel, Jacqueline. Business Etiquette. New delhi: Lancer, 1994.

MLA aipamena

Dunckel, Jacqueline. Business Etiquette. Lancer, 1994.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.