Não informado. (2004). Plumbing, heating, piping. Delta Communications.
Chicagoスタイル(17版)引用形式Não informado. Plumbing, Heating, Piping. Chicago, Ill: Delta Communications, 2004.
MLA(8版)引用形式Não informado. Plumbing, Heating, Piping. Delta Communications, 2004.
警告: この引用は必ずしも正確ではありません.