Não informado. (1939). Supervision: The magazine of industrial relations and operating management. National Association of Foremen.
Chicagoスタイル(17版)引用形式Não informado. Supervision: The Magazine of Industrial Relations and Operating Management. Burlington, Vt: National Association of Foremen, 1939.
MLA(8版)引用形式Não informado. Supervision: The Magazine of Industrial Relations and Operating Management. National Association of Foremen, 1939.
警告: この引用は必ずしも正確ではありません.