Proctor, T. (2005). Essentials of marketing research (4th ed.). Financial Times/Prentice Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रProctor, Tony. Essentials of Marketing Research. 4th ed. Harlow, England ; New York: Financial Times/Prentice Hall, 2005.
एमएलए (8वां संस्करण) प्रशस्ति पत्रProctor, Tony. Essentials of Marketing Research. 4th ed. Financial Times/Prentice Hall, 2005.
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