Acker, Duane Animal science and industry / Duane Acker, Merle Cunningham. - 5th ed. - Upper Saddle River, N. J. : Prentice Hall, c1998. - xvi, 704p. : ill. ; 26 cm. Glossary : p. 685 - 697. ISBN: 0135249015 Subjects--Topical Terms: Livestock.Animal industry.