APA (7e ed.) Bronvermelding

Não informado. (1939). Supervision: The magazine of industrial relations and operating management. National Association of Foremen.

Chicago (17e ed.) Bronvermelding

Não informado. Supervision: The Magazine of Industrial Relations and Operating Management. Burlington, Vt: National Association of Foremen, 1939.

MLA (8e ed.) Bronvermelding

Não informado. Supervision: The Magazine of Industrial Relations and Operating Management. National Association of Foremen, 1939.

Let op: Deze citaties zijn niet altijd 100% accuraat.