International Labour Office. (1969). Introduction to work study/2e (2nd ed.). International Labour Office.
Chicago Edition CitationInternational Labour Office. Introduction to Work Study/2e. 2nd ed. Geneva: International Labour Office, 1969.
Cita MLAInternational Labour Office. Introduction to Work Study/2e. 2nd ed. International Labour Office, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.