00337nam a2200133Ia 4500008004100000082001600041100001900057245001900076260003900095300000800134650001800142650002400160653001900184170901s1966    xx            000 0 und d  a591.5bE63A  aElton, Charles 0aAnimal Ecology  aLondonbMethuen and Co. Ltd.c1966  a207  aPure sciences  aZoological sciences  aAnimal ecology