Não informado. (1985). Administrative Management. Dalton Communications, Automated Office.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Administrative Management. New York: Dalton Communications, Automated Office, 1985.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Administrative Management. Dalton Communications, Automated Office, 1985.
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