Cox, K. K., Enis, B. M., & Keith cox K. (1973). Readings in the marketing research process. Good Year publishsing company.
Chicago Edition CitationCox, Keith K., Ben M. Enis, i Keith cox K. Readings in the Marketing Research Process. California: Good Year publishsing company, 1973.
Cita MLACox, Keith K., et al. Readings in the Marketing Research Process. Good Year publishsing company, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.