000 00329nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aWeaver, L.A.
245 _aSelf - Feeders for Fattening Swine
260 _aColumbia
_c1917
300 _a22p.
440 _aColumbia Agricultural Experim
901 _a24514
942 _cB
_2udc
999 _c4576
_d4576