Green, P. E., & Tull, D. S. (1966). Research for marketing decisions. Prentice-Hall.
Chicago Style (17th ed.) ZitazioaGreen, Paul E., eta Donald S. Tull. Research for Marketing Decisions. Englewood Cliffs: Prentice-Hall, 1966.
MLA (9th ed.) ZitazioaGreen, Paul E., eta Donald S. Tull. Research for Marketing Decisions. Prentice-Hall, 1966.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.