International Labour Office. (1951). Payment by results. International Labour Office.
Chicago Edition CitationInternational Labour Office. Payment by Results. Geneva: International Labour Office, 1951.
Deismireacht MLAInternational Labour Office. Payment by Results. International Labour Office, 1951.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.