Dyfyniad APA

(1949). Annual bulletin of transport statistics for Europe: Bulletin annuel de statistiques de transports Europeens. 1st year.

Dyfyniad Arddull Chicago

Annual Bulletin of Transport Statistics for Europe: Bulletin Annuel De Statistiques De Transports Europeens. 1st Year. Geneva, 1949.

Dyfyniad MLA

Annual Bulletin of Transport Statistics for Europe: Bulletin Annuel De Statistiques De Transports Europeens. 1st Year. 1949.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.