000 00282 a2200121 4500
082 _a622
_bUn3m
245 1 _aMINERAL RESOURCES DEVELOPMENT
260 _a
_b
_c
300 _av.
440 _aMineral Resources Development Series
_vV. 15
964 _gCIRC
997 _a19149 v. 15 s C
999 _c452219
_d452219