Παραπομπή APA

Schmidt, M. J., & Hollensen, S. (2007). Marketing research: An international approach. Pearson Education.

Παραπομπή Chicago Style

Schmidt, Marcus J., και Svend Hollensen. Marketing Research: An International Approach. New Delhi: Pearson Education, 2007.

Παραπομπή MLA

Schmidt, Marcus J., και Svend Hollensen. Marketing Research: An International Approach. Pearson Education, 2007.