Individual Variation in the Skeletons of Birds, and Other Matters
Shufeldt, Robert Wilson 1850-1934
Article
1887
The Auk
4
265--268
BioStor
English
Washington, D.C, American Ornithologists' Union, etc, 1884-
BioStor: https://biostor.org/reference/123170 DOI: https://doi.org/10.2307/4066938