Cullison, Arthur Edison. Feeds and feeding - 4 ed. - Englewood Cliffs, N.J. : Prentice-Hall, 1987 - 645 p. : ilus. ; gráfs LCCN: 8836 Subjects--Topical Terms: Forrajes.Nutrición animal. Dewey Class. No.: 633.2 / C84 1987