Ingram, T. N., & LaForge, R. W. (1989). Sales management: Analysis and decision making. Dryden Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIngram, Thomas N., और Raymond W. LaForge. Sales Management: Analysis and Decision Making. Chicago: Dryden Press, 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIngram, Thomas N., और Raymond W. LaForge. Sales Management: Analysis and Decision Making. Dryden Press, 1989.
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