000 00418nam a2200133Ia 4500
008 160316s9999 xxu||||| |||| 00| 0 eng d
020 _a9788183564380
100 _aSingh G
245 _aEarth science today
260 _aNew Delhi
_bDiscovery
_c2009
300 _avii,298p.;22.5cm
650 _aEarth sciences
999 _c97107
_d97107