TY - BOOK ED - United States. TI - Economic evaluation of coal process plus char gasification U1 - 338.973 PY - 1971///-1972 CY - Washington, D.C. PB - U.S. American Oil Company Research and Development Department KW - Economic policy KW - United States KW - Economic growth KW - Economic development N1 - Contact no. 14-32-0001-1210; Prepared for department of the interior office of coal research ER -