000 00467nam a2200205Ia 4500
008 230524s9999 xx 000 0 und d
020 _a0-632-09740-X
040 _cUDSM
050 _aQH541.5.W3W5
100 _aWhitton, B. A.
245 0 _aRiver ecology
260 _aOxford
260 _c1975
300 _ax,725p.
300 _c25cm.
650 _aFreshwater biology
700 _aill.
942 _2Library of Congress Classification
942 _cBook
999 _c16957
_d16957