Pachter, B. (1995). Complete business etiquette handbook. Prentice hall.
Chicago Style aipamenaPachter, Barbara. Complete Business Etiquette Handbook. New Jercy: Prentice hall, 1995.
MLA aipamenaPachter, Barbara. Complete Business Etiquette Handbook. Prentice hall, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.