International Labour Conference (1967). (1967). Report of the Director General: International Labour Conference Session 51 Report 1 Part 2. International Labour Office.
Dyfyniad Arddull ChicagoInternational Labour Conference (1967). Report of the Director General: International Labour Conference Session 51 Report 1 Part 2. Geneva: International Labour Office, 1967.
Dyfyniad MLAInternational Labour Conference (1967). Report of the Director General: International Labour Conference Session 51 Report 1 Part 2. International Labour Office, 1967.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.