International Labour Office. (1979). Introduction to work study (3rd (rev.) ed.). International Labour Office.
Chicagoスタイル(17版)引用形式International Labour Office. Introduction to Work Study. 3rd (rev.) ed. Geneva: International Labour Office, 1979.
MLA(9版)引用形式International Labour Office. Introduction to Work Study. 3rd (rev.) ed. International Labour Office, 1979.
警告: この引用は必ずしも正確ではありません.