Oberholser's Revision of the Genus Collocalia
Oberholser, Harry C. (Harry Church), 1870-1963
Article
1906
The Auk
23
473--474
BioStor
English
Washington, D.C, American Ornithologists' Union, etc, 1884-
BioStor: https://biostor.org/reference/122042 DOI: https://doi.org/10.2307/4070453