000 00288nam a22001337a 4500
020 _a9788173814044
082 _bSAN
100 _aSantra S.C.
245 _aEnvironmental Science
250 _a3rd
260 _aKolkatta
_bNew Central Book Agency
_c2016
300 _axxx, 529p
942 _cBK
999 _c474
_d474