International Transport Workers' Federation (ITF). (1975). Constitution of the International Transport Workers' Federation. London: ITF.
Dyfyniad Arddull ChicagoInternational Transport Workers' Federation (ITF). Constitution of the International Transport Workers' Federation. London: ITF, 1975.
Dyfyniad MLAInternational Transport Workers' Federation (ITF). Constitution of the International Transport Workers' Federation. London: ITF, 1975.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.