000 nam a22 7a 4500
999 _c1520
_d1520
003 OSt
005 20180720120007.0
008 180720b xxu||||| |||| 00| 0 eng d
082 _a333
_bALF
100 _aAlfred, J.R.B.
245 _aA guide to the study of freshwater organisms /
_cby Alfred J. R. B. et all
260 _aMadurai :
_bDepartment of Biological Sciences Madurai University ;
300 _a185 p.,
_c25 cm.
942 _2ddc
_cBK