Zikmund, W. G., & Babin, B. J. (2007). Essentials of marketing research (3rd ed.). Mason, OH: South-Western/Cengage Learning.
Chicago-стиль цитированияZikmund, William G., và Barry J. Babin. Essentials of Marketing Research. 3rd ed. Mason, OH: South-Western/Cengage Learning, 2007.
MLA-цитированиеZikmund, William G., và Barry J. Babin. Essentials of Marketing Research. 3rd ed. Mason, OH: South-Western/Cengage Learning, 2007.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.