000 00367 am a2200121 a 4500
100 1 _aDowler. John F.
245 1 _aSome factors causing variations in crop production costs in putnam county
260 _aWooster
_c1931
300 _a1-40 p.
942 _2udc
_cB
440 _aVariations, Crop Ohio Agricultural Experiment Station. Bulletin No. 481
901 _aS47287
999 _c103283
_d103283