00646nam a2200205Ia 4500001001000000003000500010008004100015010001100056040000900067082001900076100001700095245006700112260004500179300001000224440002800234500009000262650002900352650003800381650002100419Para_6270CHAP220125s1941    xx            000 0 und d  a205013  cCHAP  aPA-C 595.7 B85  aWalter, E.V.  aThe biology and control of the sorghum midge  /c E. V. Walter  aWashington :b Department of Agriculture  a27 p.  aTechnical bulletin; 778  aEncuadernado con:  Studies of life histories of froghoppers of Maine / Herbert Osborn  aInsectos x Parásitos   aInsectos parásitos y predadores  aSorgo x plagas