On the Free Post-Pubis in Certain of the Falconidæ
Shufeldt, Robert Wilson 1850-1934 Goss, N. S. (Nathaniel S.)
Article
1886
The Auk
3
133--134
BioStor
English
Washington, D.C, American Ornithologists' Union, etc, 1884-
BioStor: https://biostor.org/reference/124956 DOI: https://doi.org/10.2307/4625349