Não informado. (1947). School food service journal. American School Food Service Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. School Food Service Journal. Alexandria, Va: American School Food Service Association, 1947.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. School Food Service Journal. American School Food Service Association, 1947.
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