000			00306nam a2200133Ia 4500
008			140317s9999 xx 000 0 und d
082			_a591.5
100			_aMacan,T.T.
245			_aFreshwater ecology.2nd ed.
260			_aLongman _b _c1974
300			_a343
650			_aZoological Sci.
942			_2ddc _cBK
999			_c6922 _d6922