000 00277nam a2200097 4500
100 _aUniv. of Chicago Press
245 _aJournal of Geology,vol.82(1-6)
_cUniv. of Chicago Press
260 _aUniv. of Chicago Press
_c1974
260 _aUniv. of Chicago Press
_c1974
942 _cCR
999 _c336681
_d336681