Cita APA (7a ed.)

Tull, D. S., & Hawkins, D. I. (1993). Marketing research: Measurement & method : a text with cases (6th ed.). Prentice-Hall.

Cita Chicago Style (17a ed.)

Tull, Donald S., y Del I. Hawkins. Marketing Research: Measurement & Method : A Text with Cases. 6th ed. New Delhi: Prentice-Hall, 1993.

Cita MLA (9a ed.)

Tull, Donald S., y Del I. Hawkins. Marketing Research: Measurement & Method : A Text with Cases. 6th ed. Prentice-Hall, 1993.