Cita APA (7a ed.)

Hawkins, D. I., & Tull, D. S. (1994). Essentials of marketing research. Macmillan.

Cita Chicago Style (17a ed.)

Hawkins, Del I., y Donald S. Tull. Essentials of Marketing Research. New York: Macmillan, 1994.

Cita MLA (9a ed.)

Hawkins, Del I., y Donald S. Tull. Essentials of Marketing Research. Macmillan, 1994.