Não informado. (1934). Industrial Heating. Business News Publishing.
Chicagoスタイル(17版)引用形式Não informado. Industrial Heating. Pittsburgh, Pa: Business News Publishing, 1934.
MLA(8版)引用形式Não informado. Industrial Heating. Business News Publishing, 1934.
警告: この引用は必ずしも正確ではありません.