000 00323nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aPaddock, F.B.
245 _aControl of american foulbrood
260 _aIowa
_c1950
300 _a571-584
440 _aIowa Agricultural Experiment
901 _a29563
942 _cB
_2udc
999 _c5780
_d5780