A field guide to western birds : field marks of all species found in North America west of the 100th meridian, with a section on the birds of the Hawaiian Islands
著者
書誌事項
A field guide to western birds : field marks of all species found in North America west of the 100th meridian, with a section on the birds of the Hawaiian Islands
（The Peterson field guide series, 2）
Houghton Mifflin, c1961
2d ed., rev. and enl.