TY  - BOOK
AU  - Bull,John L.
AU  - Bull,Edith
TI  - Birds of North America: a quick identification guide for all bird-watchers 
SN  - 0020625804
AV  - QL683.W4 B85 1989b
U1  - 598.2978 20
PY  - 1989///
CY  - New York
PB  - Collier Books
KW  - Birds
KW  - West (U.S.)
KW  - Identification
KW  - North America
N1  - Maps on lining papers; Includes index
UR  - http://www.archive.org/details/birdsofnorthamer00bull
UR  - http://www.openlibrary.org/books/OL2209450M
ER  -