00294nam a2200109 a 450000500170000002000150001708200130003210000160004524500480006126000480010930000270015720251203110300.0  a0521790301  a552bVER  aVernon, Ron  aBeneath our feetbthe rocks of planet earth  aCambridgebCambridge University Pressc2000  aviii,216p.c24cm.bHB.