000 00283 am a2200121 a 4500
100 1 _aDove, W.E.
245 1 _aScrewworm control
260 _aWashington
_c1938
300 _a1-6 p.
942 _2udc
_cB
440 _aU.S. Department of Agricultre. Leaflet No. 162
901 _aS49665
999 _c106247
_d106247