Cita APA (7a ed.)

Tull, D. S. (1990). Marketing research: Measurement and method (5th ed.). Macmillan.

Cita Chicago Style (17a ed.)

Tull, Donald S. Marketing Research: Measurement and Method. 5th ed. Macmillan, 1990.

Cita MLA (9a ed.)

Tull, Donald S. Marketing Research: Measurement and Method. 5th ed. Macmillan, 1990.