00950nam0-22003131i-450-99000206925040332120021010000206925FED01000206925(Aleph)000206925FED0100020692520021010d--------km-y0itay50------baita<<A >>guide to the Study of fresh-water BiologyJames G. Needham, Paul R. NeedhamNew YorkThe American viewpoint society192788 pp.22 cmWith special reference to Aquatic insects and other Invertebrate AnimalsFauna acquaticaIdrobiologia591.92Needham,James George84463ITUNINARICAUNIMARCBK99000206925040332161 X B.4/14337DAGENDAGENGuide to the Study of fresh-water Biology394366UNINAING01