Não informado. (1922). Refiner and Natural Gasoline Manufacturer. Gulf Publishing.
Chicagoスタイル(17版)引用形式Não informado. Refiner and Natural Gasoline Manufacturer. Houston, Tex: Gulf Publishing, 1922.
MLA(8版)引用形式Não informado. Refiner and Natural Gasoline Manufacturer. Gulf Publishing, 1922.
警告: この引用は必ずしも正確ではありません.