Caterpillar Diesel Engines - Servicemen's Reference BookCaterpillar Diesel Engines Servicemen's Reference Book D311 Industrial ; D311 Electric Set ; D311 Marine ; D2 Tractor ; No. 212 Motor Grader Caterpillar Tractor Co., no date, black and white photographs and instructional diagrams throughout, paperback Very Good Condition, some edge and shelf wear, some rubbing and bumping to edges and corners, some scuffing and soiling to covers, no inscriptions (see photographs)