000 nam a22 7a 4500
999 _c997
_d997
003 OSt
005 20180704174047.0
008 180704b xxu||||| |||| 00| 0 eng d
020 _a8170244870
082 _a574.52630954
_bGAU
100 _aGautam, Ashutosh
245 _aAquatic environment /
_cby Ashutosh Gautam.
260 _aNew Delhi :
_bAshish Publishing House ;
_c1992.
300 _a144 p.,
_c22 cm.
942 _2ddc
_cBK