Não informado. (1948). Personnel administrator. American Society for Personnel Administration.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Personnel Administrator. Berea, Ohio: American Society for Personnel Administration, 1948.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Personnel Administrator. American Society for Personnel Administration, 1948.
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