ECKEL, P. J. (1985). College And University Foodservice Management Standars Peter J. Eckel. The Avi Publishing Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रECKEL, Peter J. College And University Foodservice Management Standars Peter J. Eckel. The Avi Publishing Company, 1985.
एमएलए (8वां संस्करण) प्रशस्ति पत्रECKEL, Peter J. College And University Foodservice Management Standars Peter J. Eckel. The Avi Publishing Company, 1985.
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