00390nam a2200157Ia 4500008004100000082001600041100001700057245002500074250000600099260005100105300000800156650001800164650002400182653001200206653001400218170901s1966    xx            000 0 und d  a591.5bC73E  aCroll, N. A. 0aEcology of Parasites  a1  aLondonbHeinemann Educational Books Ltd.c1966  a136  aPure Sciences  aZoological sciences  aEcology  aParasites