000 00274nam a22001097a 4500
008 160624b xxu||||| |||| 00| 0 eng d
100 _9919
_aBhattacharya, S
245 _aExploring Environment
260 _aN.Y
_bNCERT
_c1987
300 _aExploring Environment
942 _2ddc
_cBK
999 _c740
_d740