000			00397nam a2200157Ia 4500
003			NIELib
008			211019s9999||||xx |||||||||||||| ||und||
020			_a0-435-61537-8
082			_a574.5 _bBRO
100			_917198 _aBrown, Alison Leadley
245			_aEcology of fresh water
260			_bHeinemann, _c1971. _aLondon :
300			_axi,129p.; _bill.; _c20cm
650			_aBiology
942			_2ddc _cLM
999			_c9956 _d9956