Dyfyniad APA

Heyel, C. (1962). Management for modern supervisions. American Management Association.

Dyfyniad Arddull Chicago

Heyel, Carl. Management for Modern Supervisions. U.S.A: American Management Association, 1962.

Dyfyniad MLA

Heyel, Carl. Management for Modern Supervisions. American Management Association, 1962.

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