000 00281nam a2200097 4500
999 _c335716
_d335716
082 _a550
_bREA.S
100 _aScientific American Resource Library
245 _aEarth Sciences, Vol.3
_cScientific American Resource Library
260 _aSanfranscisco
_c1973
_bW.H.Freeman
942 _cBK