(1966). International labour review. Geneva: International Labour Office.
Dyfyniad Arddull ChicagoInternational Labour Review. Geneva: International Labour Office, 1966.
Dyfyniad MLAInternational Labour Review. Geneva: International Labour Office, 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.