(1969). A private notice: An appeal on behalf of all workers involved in the official dispute at Centrax Ltd. s.n.].
Dyfyniad Arddull ChicagoA Private Notice: An Appeal on Behalf of All Workers Involved in the Official Dispute at Centrax Ltd. [S.I.: s.n.], 1969.
Dyfyniad MLAA Private Notice: An Appeal on Behalf of All Workers Involved in the Official Dispute at Centrax Ltd. s.n.], 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.