Παραπομπή APA

Tull, D. S. (2002). Marketing research: Measurement & method (6th ed.). Prentice hall od India.

Παραπομπή Chicago Style

Tull, Donald S. Marketing Research: Measurement & Method. 6th ed. New Delhi: Prentice hall od India, 2002.

Παραπομπή MLA

Tull, Donald S. Marketing Research: Measurement & Method. 6th ed. Prentice hall od India, 2002.