Expert Working Group from Asia and the Far East on Railway Operating and Signalling. (1954). Railway operating and signalling techniques in Europe, Japan and the United States of America: Report. United Nations.
Dyfyniad Arddull ChicagoExpert Working Group from Asia and the Far East on Railway Operating and Signalling. Railway Operating and Signalling Techniques in Europe, Japan and the United States of America: Report. [New York?]: United Nations, 1954.
Dyfyniad MLAExpert Working Group from Asia and the Far East on Railway Operating and Signalling. Railway Operating and Signalling Techniques in Europe, Japan and the United States of America: Report. United Nations, 1954.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.