APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

Hawkins, Del I., and Donald G. Tull. Essentials of Marketing Research. Macmillan, 1994.