| Hornaday, W.T., 1907. Popular official guide to the New York Zoological Park, 9th ed. New York, Zoological Society
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| Hornaday, W.T., 1902. Popular official guide to the New York Zoological Park as far as completed, 5th ed. New York, Zoological Society
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| Hornaday, W.T., 1896. [Henry A. Ward] The king of the Museum-builders. The Commercial Travelers Magazine 6 (2): 147-159
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| Hornaday, W.T., 1885. Two years in the jungle: the experiences of a hunter and naturalist in India, Ceylon, the Malay Peninsula and Borneo. London, Kegan Paul and Trench, pp. i-xxii, 1-512
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