Não informado. (1953). Railway Track and Structures. Simmons Boardman Publishing.
Chicagoスタイル(17版)引用形式Não informado. Railway Track and Structures. Bristol, Conn: Simmons Boardman Publishing, 1953.
MLA(8版)引用形式Não informado. Railway Track and Structures. Simmons Boardman Publishing, 1953.
警告: この引用は必ずしも正確ではありません.