A Hand-List of British Birds
Hartert, Ernst, 1859-1933 Witherby, H. F. (Harry Forbes), 1873-1944
Article
1912
The Auk
29
407--410
BioStor
English
Washington, D.C, American Ornithologists' Union, etc, 1884-
BioStor: https://biostor.org/reference/124804 DOI: https://doi.org/10.2307/4071072