Shippen, J. M. Basic farm machinery, by J. M. Shippen and J. C. Turner. - 2d ed. - Oxford, New York, Pergamon Press [1973] - ix, 383 p. illus. 21 cm. - The Commonwealth and international library. Rural and environmental studies division . ISBN: 0080176526 Subjects--Topical Terms: Agricultural machinery. LC Class. No.: S675 / .S515 1973 Dewey Class. No.: 631.3