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The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1907)

The Philippine journal of science - Philippines. National Science Development Board. (Bureau of Science, 1906)

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Poultry diseases, including diseases of other domesticated birds; with a chapter on the anatomy of the fowl - Kaupp, B. F. (Benjamin Franklyn), 1874 -1954 (A. Eger, 1922)

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Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1982)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1985)

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