TY  - BOOK
AU  - Peterson,Roger Tory
TI  - A field guide to western birds,
AV  - QL683 .P4
U1  - 598 
PY  - 1941///
CY  - Boston
PB  - Houghton Mifflin company
KW  - Birds
KW  - West (U.S.)
N1  - Colored plates accompanied by guard sheets with descriptive letterpress; "Home-reference suggestions": p. [223]-224
ER  -