Showing 1 - 2 results of 2 for search 'Welker, Robert Henry.', query time: 0.02s Refine Results
1
Natural man : the life of William Beebe /
by Welker, Robert Henry.
Published 1975
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2
Birds and men; American birds in science, art, literature, and conservation, 1800-1900.
by Welker, Robert Henry.
Published 1955
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