000 00420nam a22001577a 4500
005 20190826142345.0
008 190719b xxu||||| |||| 00| 0 eng d
041 _aeng
100 _aBala,Sujan Kumar
_91433
245 _aEnvironmental Studies (Model Field & project Work)
_bSujan Kumar Bala
250 _a4th ed.
260 _aKolkata
_bMaity Book House
_c2019
300 _a272p.
650 _aENVI
_9537
942 _cBK
999 _c14383
_d14383