In little more than a century, tractors have gone from being primitive and unreliable to utterly sophisticated and precise machines. With the invention of the internal combustion engine, modern tractors really began pulling their weight on the farm. Tractors is a comprehensive look at the history of these great machines, right up to today's most sophisticated models on the market. All major manufactures like John Deere, Massey Ferguson, and Allis-Chalmers are covered. Publisher: PRC Publishing Year: 2002 Binding: Hardback ISBN: 9780862884444 Condition: Good Description: Heavy; Large; DJ. Dust jacket is quite worn and yellowed with a small tear on the bottom edge of the spine. Book itself otherwise appears in very good condition. This image is of the actual book.