Não informado. (2003). Engineering and contracting. Gillette Publishing Company.
Chicagoスタイル(17版)引用形式Não informado. Engineering and Contracting. Hammond, Ind: Gillette Publishing Company, 2003.
MLA(8版)引用形式Não informado. Engineering and Contracting. Gillette Publishing Company, 2003.
警告: この引用は必ずしも正確ではありません.