000 00308nam a2200121Ia 4500
008 170620s9999 xx 000 0 und d
100 _aSINHA-SHARDDHA & ET.AL.
245 0 _aTEXT BOOK OF ENVIORMENTAL AND ECOLOGY
260 _bAITBS DELHI
260 _c2008
300 _a256
546 _aEnglish
690 _a ENVIORMENTAL AND ECOLOGY
999 _c31311
_d31311