The Philo system of progressive poultry keeping Philo, Edgar Woodruffe, 1863- creator text book Elmira, N.Y E. R. Philo 1910 [c1907] 1910 1907 17th ed.
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ENG Poultry SF487 .P54 1910 https://www.biodiversitylibrary.org/bibliography/39928 19422463 10.5962/bhl.title.39928