000 00282nam a2200121 4500
020 _a9788183564809
100 _aVeena
245 _aUnderstanding Earth Science
250 _a1st edition
260 _aIndia
_bDiscovery Publishing House PVT.LTD
_c2009
300 _a317p.
942 _cBK
999 _c8600
_d8600