000 00302nam a2200097 4500
100 _aSociety for Economic Geologists
245 _aJournal of Petrology, vol.1, nos.1-3
_cSociety for Economic Geologists
260 _aOxford University Press
_c1960
260 _aOxford University Press
_c1960
942 _cCR
999 _c335239
_d335239