BRENNAN, R. (2017). Business-to-business marketing. Sage Publication.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBRENNAN, Ross. Business-to-business Marketing. Sage Publication, 2017.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBRENNAN, Ross. Business-to-business Marketing. Sage Publication, 2017.
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