International Labour Organisation programme of Idustrial Activities. (1975). The wlfare of workers in mines other than coal mines: Third tripartite technical meeting for mines other than coal mines. Geneva: Iternational Labour office.
Dyfyniad Arddull ChicagoInternational Labour Organisation programme of Idustrial Activities. The Wlfare of Workers in Mines Other Than Coal Mines: Third Tripartite Technical Meeting for Mines Other Than Coal Mines. Geneva: Iternational Labour office, 1975.
Dyfyniad MLAInternational Labour Organisation programme of Idustrial Activities. The Wlfare of Workers in Mines Other Than Coal Mines: Third Tripartite Technical Meeting for Mines Other Than Coal Mines. Geneva: Iternational Labour office, 1975.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.