This is the standard reference book on the working principals and the maintenance of farm machinery and tractors. Covers cultivating, drilling equipment, farm yard, crop treatment and harvesting machinery. There are also sections on irrigation, small engines, farm power and farm workshops. Recent advances in computer technology and mapping systems. Maintenance is covered in great detail with excellent diagrams and photographs. The best reference book available on this subject. 500 Photos and Diagrams, 326 Pages Hardcover.