000 00255nam a2200109Ia 4500
008 220201s2016 xx 000 0 eng d
100 _aBHARGAVA R N
245 0 _aECOLOGY AND ENVIRONMENT
260 _aDELHI
_bTERI PUB
_c2016
300 _a244
942 _2ddc
999 _c93933
_d93933