000			00312 a2200133 4500
080			_a577.2(28) _bP 827 S
245	1		_aSome aspects of life in fresh water _cby E.J. Popham
260			_aLondon _c1955
650			_aLife
650			_aFresh Water
100	1		_aPopham, E.J. _d
300			_a123 p.
901			_a50635
999			_c32157 _d32157