Citazione APA

international labour officer. (1969). Introduction to work study/2e (2nd ed.). International labour office.

Stile di citazione Chicago

international labour officer. Introduction to Work Study/2e. 2nd ed. Geneva: International labour office, 1969.

Citazione MLA

international labour officer. Introduction to Work Study/2e. 2nd ed. International labour office, 1969.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.