00465nam a2200181Ia 4500008004100000020001600041082001800057100002000075245003900095260004100134300000800175650001800183650001800201653001200219653001400231653001700245700002100262170901s1977    xx            000 0 und d  a012241750 X  a574.524bE79R  aEsch, Gerald W. 0aRegulation of Parasite Populations  aNew YorkbAcademic Press, Inc.c1977  a253  aLife sciences  aPure Sciences  aControl  aParasites  aParasitology  aNickol, Brent B.