000 00384nam a22001457a 4500
003 OSt
020 _a978-81-219-2764-2
082 _a344.54046
_bAST-R3
100 _aAsthana, D.K
_92669
245 _aTextbook of environmental studies
260 _aNew Delhi
_bS Chand and Company Limited
_c2022
300 _a397
_bPaper Binding
700 _aAsthana, Meera
_92670
942 _2ddc
_cBK
_01
999 _c17229
_d17229