Yugoslavia. (1977). The Associated labour act. Dopisna delavska univerza.
Dyfyniad Arddull ChicagoYugoslavia. The Associated Labour Act. Belgrade: Dopisna delavska univerza, 1977.
Dyfyniad MLAYugoslavia. The Associated Labour Act. Dopisna delavska univerza, 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.