Cassard, Daniel W. Approved practices in feeds and feeding / Westley R. Patton, Daniel W. Cassard, Elwood M. Jurgenson. - 5th ed. - Danville : Interstate Printers & Publishers, 1977. - 445 p. : ill. ; 22 cm. Includes index. Open access. Subjects--Topical Terms: Animal nutrition.Feeds.