Symposium on In Situ Processing of Coal Montreal, Canada, American Chemical Society. Division of Fuel Chemistry, & Symposium on the Properties of Coal Ash. (1977). Symposium on In Situ processing of coal: Symposium on the properties on coal ash : preprints of papers presented at Montreal, Canada, May 29 - June 2, 1977. Division of Fuel Chemistry, American Chemical Society.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Symposium on In Situ Processing of Coal Montreal, Canada, American Chemical Society. Division of Fuel Chemistry, và Symposium on the Properties of Coal Ash. Symposium on In Situ Processing of Coal: Symposium on the Properties on Coal Ash : Preprints of Papers Presented at Montreal, Canada, May 29 - June 2, 1977. Pittsburgh, Pa.: Division of Fuel Chemistry, American Chemical Society, 1977.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Symposium on In Situ Processing of Coal Montreal, Canada, et al. Symposium on In Situ Processing of Coal: Symposium on the Properties on Coal Ash : Preprints of Papers Presented at Montreal, Canada, May 29 - June 2, 1977. Division of Fuel Chemistry, American Chemical Society, 1977.