Randall, G., & Geoffrey Randall. (2001). Principles of marketing. Glenview, Ill: Scott, Foresman/Little, Brown Higher Education.
Chicago Style aipamenaRandall, Geoffrey, và Geoffrey Randall. Principles of Marketing. Glenview, Ill: Scott, Foresman/Little, Brown Higher Education, 2001.
MLA aipamenaRandall, Geoffrey, và Geoffrey Randall. Principles of Marketing. Glenview, Ill: Scott, Foresman/Little, Brown Higher Education, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.