Não informado. (1937). Engineering and Contract Record. Southam Business Publications.
Chicagoスタイル(17版)引用形式Não informado. Engineering and Contract Record. Toronto, Canada: Southam Business Publications, 1937.
MLA(8版)引用形式Não informado. Engineering and Contract Record. Southam Business Publications, 1937.
警告: この引用は必ずしも正確ではありません.