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