Tull, D. S., & Hawkins, D. I. (1990). Marketing research: Measurement & method ; a text with cases (5. ed.). Macmillan u. a.
Chicago Style (17th ed.) CitationTull, Donald S., and Del I. Hawkins. Marketing Research: Measurement & Method ; a Text with Cases. 5. ed. New York u. a: Macmillan u. a, 1990.
MLA (9th ed.) CitationTull, Donald S., and Del I. Hawkins. Marketing Research: Measurement & Method ; a Text with Cases. 5. ed. Macmillan u. a, 1990.
Warning: These citations may not always be 100% accurate.