000 00288 am a2200121 a 4500
100 1 _aRoss, W.A., Hall, J.A.
245 1 _aRose chafer
260 _aOttawa
_c1926
300 _a1-4 p.
942 _2udc
_cB
440 _aCanada Department of Agriculture. Circular No. 44
901 _aS46476
999 _c102075
_d102075