Não informado. (1906). Engineering and contracting. Engineering and Contracting Publishing.
Chicagoスタイル(17版)引用形式Não informado. Engineering and Contracting. Chicago, Ill: Engineering and Contracting Publishing, 1906.
MLA(8版)引用形式Não informado. Engineering and Contracting. Engineering and Contracting Publishing, 1906.
警告: この引用は必ずしも正確ではありません.