A Synopsis of the Genus Contopus and Its Allies
Oberholser, Harry C. (Harry Church), 1870-1963
Article
1899
The Auk
16
330--337
BioStor
English
Washington, D.C, American Ornithologists' Union, etc, 1884-
BioStor: https://biostor.org/reference/124319 DOI: https://doi.org/10.2307/4069360