Schultz, R. L., Zaltman, G., & Burger, P. C. (1975). Cases in marketing research. Hinsdale, IL.: Dryden Press.
Παραπομπή Chicago StyleSchultz, Randall L., Gerald Zaltman, and Philip. C. Burger. Cases in Marketing Research. Hinsdale, IL.: Dryden Press, 1975.
Παραπομπή MLASchultz, Randall L., Gerald Zaltman, and Philip. C. Burger. Cases in Marketing Research. Hinsdale, IL.: Dryden Press, 1975.
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