000 00416nam a2200169Ia 4500
008 170901s1974 xx 000 0 und d
020 _a0582446244
082 _a574.52632
_bM12F
100 _aMacan, T.T.
245 0 _aFreshwater Ecology
260 _aLondon
_bLongman Group Ltd.
_c1974
300 _a343
650 _aLife sciences
650 _aPure Sciences
653 _aFreshwater ecology
942 _2ddc
_cBK
999 _c6819
_d6819