Não informado. (1929). Heating, Piping and Air Conditioning. Penton Publishing.
Chicagoスタイル(17版)引用形式Não informado. Heating, Piping and Air Conditioning. Cleveland, Ohio: Penton Publishing, 1929.
MLA(8版)引用形式Não informado. Heating, Piping and Air Conditioning. Penton Publishing, 1929.
警告: この引用は必ずしも正確ではありません.