Cita APA (7th ed.)

Tull, D. S., & Hawkins, D. I. (1987). Marketing research: Measurement and method : a text with cases (4th ed.). Macmillan Pub. Co. ; Collier Macmillan.

Cita Chicago (17th ed.)

Tull, Donald S., i Del I. Hawkins. Marketing Research: Measurement and Method : A Text with Cases. 4th ed. New York : London: Macmillan Pub. Co. ; Collier Macmillan, 1987.

Cita MLA (9th ed.)

Tull, Donald S., i Del I. Hawkins. Marketing Research: Measurement and Method : A Text with Cases. 4th ed. Macmillan Pub. Co. ; Collier Macmillan, 1987.