Shedenhelm, W. R. C. (1976). The Motorcycle and Trailbike Handbook. New York: Pyramid Books.
Dyfyniad Arddull ChicagoShedenhelm, W. R. C. The Motorcycle and Trailbike Handbook. New York: Pyramid Books, 1976.
Dyfyniad MLAShedenhelm, W. R. C. The Motorcycle and Trailbike Handbook. New York: Pyramid Books, 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.