000 00304nam a2200133Ia 4500
008 170324s9999 xx 000 0 und d
082 _a574.929
100 _a"Schwoerbel, Jurgen"
245 0 _aMethods of hydrobiology
260 _bPergamon Press Ltd.
260 _c1970
365 _b0.00
942 _cBK
999 _c5655
_d5655