(1985). Service America: Doing Business in the New Economy. Dow Jones-Irwin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रService America: Doing Business in the New Economy. united states of america: Dow Jones-Irwin, 1985.
एमएलए (9वां संस्करण) प्रशस्ति पत्रService America: Doing Business in the New Economy. Dow Jones-Irwin, 1985.
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