Cita APA
Hawkins, D. I., & Tull, D. S. (1993). Essentials of marketing research (6th ed.). Macmillan.
Citación estilo Chicago
Hawkins, Del I., and Donald S. Tull. Essentials of Marketing Research. 6th ed. New York: Macmillan, 1993.
Cita MLA
Hawkins, Del I., and Donald S. Tull. Essentials of Marketing Research. 6th ed. Macmillan, 1993.
Warning: These citations may not always be 100% accurate.