Introduction to Computers & Information Systems by Larry & Nancy Long – NOS.very informative. These parts my be dusty, dirty, have surface rust, be scuffed or scratched. (Cub Cadet, Troy Bilt, Kohler, Briggs, Tecumseh, Polaris, Artic Cat, Suzuki, Wheel Horse, Bolens, Mitsubisi Satoh, Murray, Stihl, Husqvarna, [Car parts: tons of classic Porsche 944 parts!]. ).