000 00452nam a22001817a 4500
005 20250716114234.0
008 250716b |||||||| |||| 00| 0 eng d
020 _a8121927641
050 _aQH541.A8 2006
100 _aAsthana ,D.K
245 _aA textbook of Environmental studies/
250 _a1st ed
260 _aNew delhi
_bschanda & company
_c2006
300 _axvii, 460p
_bpbk
650 _aecology
700 _aAsthana, M
942 _cBK
999 _c19091
_d19091