International Labour Office , G. (1978). Introduction to work Study (3rd Rev Ed.). ILO.
Chicago Edition CitationInternational Labour Office , Geneva. Introduction to Work Study. 3rd Rev Ed. Geneva, ILO: ILO, 1978.
Deismireacht MLAInternational Labour Office , Geneva. Introduction to Work Study. 3rd Rev Ed. ILO, 1978.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.