000 00302 am a2200121 a 4500
100 1 _aDrayton, Lisle
245 1 _aApple scab
260 _aCanada
_c1916
300 _a1-4 p.
942 _2udc
_cB
440 _aApple, Scab Canada Department of Agriculture. Exhibition Circular No. 46
901 _aS46710
999 _c102378
_d102378