Eighth Supplement to the American Ornithologists' Union Check-List of North American Birds
Brewster, William, 1851-1919
Allen, J A
Merriam, C. Hart (Clinton Hart), 1855-1942
Ridgway, Robert, 1850-1929
Washington, D.C. :American Ornithologists' Union, etc.,1884-
Public domain. The BHL considers that this work is no longer under copyright protection.