000 00327nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aM'Kay, G.L., Larsen, C.
245 _aKeeping quality of butter
260 _aIowa
_c1903
300 _a30 p.
440 _aIowa Agricultural Experiment
901 _a21602
942 _cB
_2udc
999 _c3487
_d3487