Hopkins, John A. 1897- Elements of farm management / by John A. Hopkins and William G. M urray. - 4th ed. - New York : Prentice-Hall, 1953. - 455 p. : ill. ; 22 cm. Includes bibliographical references. LCCN: 53-005578 Subjects--Topical Terms: Farm management.-------- Dewey Class. No.: 631.1 HOP