(ICF KAISER ENGINEERS, INC., PITTSBURGH, PA (USA)// OHIO DEPT. OF DEVELOPMENT, COLUMBUS, OH (USA). COAL OFFICE// BABCOCK AND WILCOX CO., NEW ORLEANS, LA (USA)// CONSOLIDATION COAL CO., PITTSBURGH, PA (USA)// CENTER FOR RESEARCH ON SULFUR IN COAL, CARTERVILLE, IL (USA)// EIMCO PROCESSED EQUIPMENT CO., SALT LAKE CITY, UT (USA)// ILLINOIS STATE GEOLOGICAL SURVEY, CHAMPAIGN, IL (USA)// KENTUCKY ENERGY CABINET LAB., LEXINGTON, KY (USA)// VIRGINIA POLYTECHNIC INST. AND STATE UNIV., BLACKSBURG, VA (USA))United States. Dept. of Energy(United States. Dept. of Energy)1990.
全国の図書館