O'Mary, C. C. Commercial beef cattle production / edited by Clayton C. O'Mary and Irwin A. Dyer. - 2nd edition. - Philadelphia : Lea & Febiger, c1978. - ix, 414 pages : Illustration ; 26 cm. Includes bibliographies and index. ISBN: 0812106113 LCCN: 77018997 Subjects--Topical Terms: Beef cattle. LC Class. No.: SF207 / .O5 1978 Dewey Class. No.: 636.2/1/3