Não informado. (1952). Personnel and Guidance Journal. American Personnel and Guidance Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Personnel and Guidance Journal. Alexandria, Va: American Personnel and Guidance Association, 1952.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Personnel and Guidance Journal. American Personnel and Guidance Association, 1952.
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