Shufeldt on the Families and Higher Groups of Birds
Shufeldt, Robert Wilson 1850-1934
Article
1905
The Auk
22
227--228
BioStor
English
Washington, D.C, American Ornithologists' Union, etc, 1884-
BioStor: https://biostor.org/reference/121301 DOI: https://doi.org/10.2307/4069744