000			00284 a2200109 4500
008			181128b xxu||||| |||| 00|
100			_aWard,Henry Baldwin
245			_aFrshwater biology / _cWard,Henry Baldwin
260			_b John Wiley & Sons, Inc. _c1959
300			_a120p.
942			_2ddc _cBK
999			_c7474 _d7474