Carroll, W. E. Swine production / W. E. Caeeoll and J. L. Krider. - 2nd ed. - New York : Mcgraw-hall book co, c 1956. - 496 p. ; 24 cm. Includes index. 338 338 Subjects--Topical Terms: Swine. Dewey Class. No.: 636.4 / C236s