TY - BOOK AU - Denton,David K. AU - Iverson,Stephen R. AU - Gosling,Burton B. ED - United States. TI - HEAPREC: a methodology for determining cyanide heap leach reclamation performance bonds T2 - Information circular PY - 1992/// CY - Washington, D.C. PB - U.S. Dept. of the Interior, Bureau of Mines KW - Cyanide wastes KW - Economic aspects KW - United States KW - Computer programs KW - Reclamation of land ER -