000 002810000a22001210004500
245 _aGeological history at a glance
100 _aRIchards, L.W., ed.
100 _aRichards, G.L.
260 _aCalifornia
_bStanford
080 _a551.7(084)
_bR5
041 _aEN
942 _cBK
999 _c52313
_d52313