000 00353nam a2200145Ia 4500
008 240601s2022 xx 000 0 eng d
020 _a9788121927642
041 _aENG
082 _aAST
100 _aAsthana, DK,Asthana, Meera,
245 0 _aEnvironment Studies
250 _a1st Ed
260 _aNew Delhi
_bS Chand Company
_c2022
942 _2ddc
_cREF
999 _c1893
_d1893