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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGUILTINAN J P. MARKETING MANAGEMENT: STRATEGIES AND PROGRAMS. 4TH. NEW YORK: MCGRAW-HILL, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGUILTINAN J P. MARKETING MANAGEMENT: STRATEGIES AND PROGRAMS. 4TH. MCGRAW-HILL, 1991.
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