Cita APA (7th ed.)
Green, P. E., & Tull, D. S. (1975). Research for marketing decisions (3rd ed.). Prentice-hall.
Cita Chicago (17th ed.)
Green, Paul E., i Donald S. Tull. Research for Marketing Decisions. 3rd ed. New Jersey: Prentice-hall, 1975.
Cita MLA (9th ed.)
Green, Paul E., i Donald S. Tull. Research for Marketing Decisions. 3rd ed. Prentice-hall, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.