Tull, D. S., & Hawkins, D. I. (1993). Marketing research: Measurement & method (6th ed.). Macmillan.
Chicago Style (17th ed.) CitationTull, Donald S., and Del I. Hawkins. Marketing Research: Measurement & Method. 6th ed. New York: Macmillan, 1993.
MLA (9th ed.) CitationTull, Donald S., and Del I. Hawkins. Marketing Research: Measurement & Method. 6th ed. Macmillan, 1993.
Warning: These citations may not always be 100% accurate.