TY  - BOOK
AU  - Godfrey,W.Earl
AU  - Crosby,John A.
TI  - The birds of Canada
T2  - National Museum of Canada. 203. Biological series
U1  - 598.2971 
PY  - 1976///, c1966
CY  - Ottawa
PB  - Minister of Supply and Services
KW  - Aves
KW  - Canadá
N1  - Incluye bibliografía
ER  -