A monograph of the pheasants /.London, England :Published under the auspices of the New York Zoological Society by Witherby & Co.,1918-1922..biodiversitylibrary.org/page/34631056
A monograph of the pheasants /.London, England :Published under the auspices of the New York Zoological Society by Witherby & Co.,1918-1922..biodiversitylibrary.org/page/34630850