000 00298pam a2200121a 44500
008 160408b1971 xxu||||| |||| 00| 0 eng d
082 _a549.058
_bM662 1969 V.4
100 _aBureau Of Mines
245 1 _aAREA REPORTS
_bINTERNATIONAL
260 _a
_b
_c1971
964 _gCIRC
997 _aA18021 C
999 _c245827
_d245827