000 00305nam a2200133 454500
008 160721b xxu||||| |||| 00| 0 eng d
082 _a555.4
_bIn2b
100 _a
_d
245 1 _aBULLETINS
440 _aSERIES A. ECONOMIC GEOLOGY
_vno. 20
964 _gCIRC
997 _a83834 C
998 _c10002
_d10002
999 _c483332
_d483332