Parasites and predators of Wyoming rangeland grasshoppers Lavigne, Robert J creator Pfadt, Robert E. text xx Laramie, Wy University of Wyoming 1966 monographic und
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31 p. Robert J. Lavigne and Robert E. Pfadt Insectos parásitos y predadores Chapulines Wyoming Agr. Exp. Sta. Science monograph; 3 202446 220125 Para_3924