APA (7th ed.) Zitazioa
Tull, D., & Hawkins, D. I. (1984). Marketing research: Measurement and method (3rd ed.). Macmillan Publishing Comp.
Chicago Style (17th ed.) Zitazioa
Tull, Donald, eta Del I. Hawkins. Marketing Research: Measurement and Method. 3rd ed. New York: Macmillan Publishing Comp, 1984.
MLA (9th ed.) Zitazioa
Tull, Donald, eta Del I. Hawkins. Marketing Research: Measurement and Method. 3rd ed. Macmillan Publishing Comp, 1984.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.