000 00312 am a2200121 a 4500
100 1 _aDuvel, J.W.T.
245 1 _aGrades for commercial corn
260 _aWashington
_c1915
300 _a1-11 p.
942 _2udc
_cB
440 _aCorn United States Department of Agriculture. Bulletin No. 168
901 _aS49642
999 _c106265
_d106265