APA (7 वां संस्करण) प्रशस्ति पत्र

Não informado. (1955). Personnel Management Abstracts. University of Michigan, Graduate School of Business Administration.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Não informado. Personnel Management Abstracts. Ann Arbor, Mich: University of Michigan, Graduate School of Business Administration, 1955.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Não informado. Personnel Management Abstracts. University of Michigan, Graduate School of Business Administration, 1955.

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