(1976). Labour and society. Switzerland: International Institute for labour Studies.
Dyfyniad Arddull ChicagoLabour and Society. Switzerland: International Institute for labour Studies, 1976.
Dyfyniad MLALabour and Society. Switzerland: International Institute for labour Studies, 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.