TY  - BOOK
AU  - Ford,Edward
TI  - Birds of the Chicago region
T2  - Special publication, 12
PY  - 1956///
CY  - Chicago
PB  - The Chicago academy of sciences
KW  - Zoologie
KW  - Faune oiseaux
KW  - Etats Unis
KW  - Chicago
N1  - bibliogr. p. 95-105
ER  -