Tull, D. (1993). Marketing Research. Prentice Hall of India.
Chicago Style (17th ed.) CitationTull, Donald. Marketing Research. New Delhi: Prentice Hall of India, 1993.
MLA citiranjeTull, Donald. Marketing Research. Prentice Hall of India, 1993.
Opozorilo: Ti citati niso vedno 100% točni.