Não informado. (1984). Coal Preparation. Gordon and Breach Science Publishers.
Chicagoスタイル(17版)引用形式Não informado. Coal Preparation. New York: Gordon and Breach Science Publishers, 1984.
MLA(8版)引用形式Não informado. Coal Preparation. Gordon and Breach Science Publishers, 1984.
警告: この引用は必ずしも正確ではありません.