000 00317 a2200133 4500
245 1 _aPoultry diseases
260 _aOttawa
_c1955
650 _aPoultry Diseases
100 1 _aGwatkin, R.
_d
300 _a16 p.
440 _aNo. 957
_vCanada Department of Agriculture Publication
942 _2udc
_cB
901 _a49943
999 _c54096
_d54096