Johnston, M. W., Marshall, G. W., & Churchill, G. A. (2003). Churchill/Ford/Walker's sales force management (7th ed.). McGraw-Hill/Irwin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJohnston, Mark W., Greg W. Marshall, और Gilbert A. Churchill. Churchill/Ford/Walker's Sales Force Management. 7th ed. Boston: McGraw-Hill/Irwin, 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रJohnston, Mark W., et al. Churchill/Ford/Walker's Sales Force Management. 7th ed. McGraw-Hill/Irwin, 2003.
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