000 00311 am a2200121 a 4500
245 1 _aCanada thistle and its eradication
260 _aU.S.A.
_c1912
300 _a1-11 p.
100 1 _aJohnson, A.G.
942 _2udc
_cB
440 _aPurdue Agricultural Experimental Station. Circular No. 32
901 _aS47630
999 _c103555
_d103555