00390nam a2200157Ia 4500008004100000020001500041082001800056100002000074245002400094250000600118260004000124300000900164650001800173650001800191653002300209170901s1959    xx            000 0 und d  a047123298X  a574.929bE29F  aEdmondson, W.T. 0aFresh-Water Biology  a2  aNew YorkbJohn Wiley and Sonsc1959  a1248  aLife sciences  aPure Sciences  aFreshwater biology