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By "Willard, S. L. "
A directory of the ornithologists of the United States : comprising a list of the collectors and students of ornithology, with the valuations of their collections, number of species represented, &c., &c., supplemented by statistics of value and information S.L. Willard.
By: Willard, S. L.
Publication info: Utica, N.Y. :The Oologist,1877.
Contributed by: Smithsonian Libraries
BHL Collections: Smithsonian Libraries