Hopkins, John A. 1897- Elements of farm management / John A. Hopkins and William G. Murray. - 4th ed. - New York : Prentice-Hall, 1953 [printing 1960] - 455 p. : ill. ; 22 cm. Includes bibliography. Subjects--Topical Terms: Farm management.Agriculture--Economic aspectsFarms Dewey Class. No.: 630.068 / HOE 1960