000 00308 am a2200121 a 4500
100 1 _aBohstedt, G.
245 1 _aWisconsin self-feeder for hogs
260 _aMadison
_c1931
300 _a1-24 p.
942 _2udc
_cB
440 _aWisconsin Agriculture Experiment Station. Bulletin No. 419
901 _aS51913
999 _c109628
_d109628