linkedin.com (Firm), Hoffeld, D., & Random House, P. (2022). The Science of Selling: Proven Strategies to Close the Deal. linkedin.com.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रlinkedin.com (Firm), David Hoffeld, और Penguin Random House. The Science of Selling: Proven Strategies to Close the Deal. Carpenteria, CA: linkedin.com, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रlinkedin.com (Firm), et al. The Science of Selling: Proven Strategies to Close the Deal. linkedin.com, 2022.
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