000 00392nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
082 _a622.32 U58
100 _aUNITED STATES DEPARTMENT OF THE INTERIOR
245 0 _aCOST ESTIMATION HANDBOOK FOR SMALL PLACES MINES
260 _bU.S DEPARTMENT
_c1987
300 _a28X22
490 _aBUREAU OF MINES INFORMATION CIRCULAR
942 _cBK
_2DDC
999 _c22248
_d22248