000 00288 am a2200121 a 4500
100 1 _aDavis, J.J.
245 1 _aOat aphis
260 _aWashington
_c1914
300 _a1-16 p.
942 _2udc
_cB
440 _aUnited States Department of Agriculture. Bulletin No. 112
901 _aS51434
999 _c108987
_d108987