000 00306 am a2200121 a 4500
100 1 _aGroh, Herbert
245 1 _aHorsetail a horse- poisoning weed
260 _aOttawa
_c1930
300 _a1-3 p.
942 _2udc
_cB
440 _aWeed Canada Department of Agriculture. Circular No. 74
901 _aS46501
999 _c102102
_d102102