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.
Lua i Stíl Chicago (17ú heag.)Symposium on In Situ Processing of Coal Montreal, Canada, American Chemical Society. Division of Fuel Chemistry, agus 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.
Lua MLA (8ú heag.)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.