000 00296nam a2200121Ia 4500
008 160122s9999 xx 000 0 und d
041 _aEnglish
100 _aJ P Sharma
245 _aComprehensive Environmental Studies
260 _bDelhi:Laxmi Pub
_c2005
300 _a162p.
650 _aElectronic
999 _c1455
_d1455