000 00276nam a22001217a 4500
020 _a9788184115956
082 _a577
_bSIN.E
100 _aSingh, Manoj
245 _aEcology and Environment
260 _aNewDelhi
_bSonali Publications
_c2021
300 _a256p.
942 _cBK
999 _c645887
_d645887