International Labour Office. (1969). Introduction to work study/2e (2nd ed.). International Labour Office.
Chicago Style citaatInternational Labour Office. Introduction to Work Study/2e. 2nd ed. Geneva: International Labour Office, 1969.
MLA citatieInternational Labour Office. Introduction to Work Study/2e. 2nd ed. International Labour Office, 1969.
Let op: Deze citaties zijn niet altijd 100% accuraat.