Culpin, Claude. Farm machinery / Claude Culpin. - 9th ed. - London : Crosby Lockwood Staples, 1976. Includes bibliographies and index. ISBN: L.9.00 LCCN: 77361955 Nat. Bib. No.: GB76-31807 Subjects--Topical Terms: Agricultural machinery. LC Class. No.: S675 / .C85 1976 Dewey Class. No.: 631.3