APA (7th ed.) Zitazioa
Mayberry, G. E. (1993). Successful negotiating. American Management Association.
Chicago Style (17th ed.) Zitazioa
Mayberry, Grant E. Successful Negotiating. [Saranac Lake, N.Y.]: American Management Association, 1993.
MLA (9th ed.) Zitazioa
Mayberry, Grant E. Successful Negotiating. American Management Association, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.