TY  - BOOK
AU  - Peterson, Roger Tory
TI  - Western Birds : A Completely New Guide to Field o Marks of all Species Found in North America West of the Hundredth Meridian and North of Mexico
SN  - 039551424X
U1  - 598 
PY  - 1990///
CY  - Boston
PB  - Houghton Mifflin Company
KW  - Birds -- West
KW  - Birds -- Cananda -- Western -- Indentification
KW  - United State -- Identification
ER  -