Não informado. (1946). Water and sewage works. Gillette Publishing Company.
Chicagoスタイル(17版)引用形式Não informado. Water and Sewage Works. Chicago, Ill: Gillette Publishing Company, 1946.
MLA(8版)引用形式Não informado. Water and Sewage Works. Gillette Publishing Company, 1946.
警告: この引用は必ずしも正確ではありません.