000 00284nam a22001337a 4500
020 _a9789350560679
082 _a577.6
_bASH/A
100 _aAshok Kumar
245 _aAquatic ecosystem
260 _aDarya Ganj
_bDiscovery
_c2012
300 _a204
650 _aEcoloogy
942 _cBK
999 _c32904
_d32904