Coker on the Guano Birds of Peru
Coker, R. E. (Robert Ervin), 1876-1967
Article
1920
The Auk
37
160--161
BioStor
English
Washington, D.C, American Ornithologists' Union, etc, 1884-
BioStor: https://biostor.org/reference/122713 DOI: https://doi.org/10.2307/4073013