Não informado. (1970). Rail International. International Railway Congress Association.
Chicagoスタイル(17版)引用形式Não informado. Rail International. Brussels: International Railway Congress Association, 1970.
MLA(8版)引用形式Não informado. Rail International. International Railway Congress Association, 1970.
警告: この引用は必ずしも正確ではありません.