000 00320 a2200133 4500
100 1 _aFord, E.R.
245 1 _aBirds of the Chicago region
260 _aChicago
_c1956
300 _a1-117 p.
440 _aChicago Academy of Sciences. Special Publication No. 12
650 _aBirds
942 _2udc
_cB
901 _a49880
999 _c54400
_d54400