Zikmund, W. G., & Babin, B. J. (2007). Essentials of marketing research (3rd ed.). Mason, OH: South-Western/Cengage Learning.
Chicago-tyylinen lähdeviittausZikmund, William G., ja Barry J. Babin. Essentials of Marketing Research. 3rd ed. Mason, OH: South-Western/Cengage Learning, 2007.
MLA-viiteZikmund, William G., ja Barry J. Babin. Essentials of Marketing Research. 3rd ed. Mason, OH: South-Western/Cengage Learning, 2007.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.