000 00382nam a2200157Ia 4500
008 190302s9999||||xx |||||||||||||| ||und||
020 _c635
040 _aKharagpur College Library
082 _a301.1
_bSAN
100 _aS. C. Santra
245 _aEnvironmental Science
260 _bCentral
_aKolkata
_c2005
300 _a1200 p.
650 _aEnvironmental Science
942 _cBK
999 _c2539
_d2539