Huoghton, P. S. (1970). Gears: :spur, helical, bevel, internal, epicyclic and worm. Technical press.
Dyfyniad Arddull ChicagoHuoghton, P S. Gears: :spur, Helical, Bevel, Internal, Epicyclic and Worm. London: Technical press, 1970.
Dyfyniad MLAHuoghton, P S. Gears: :spur, Helical, Bevel, Internal, Epicyclic and Worm. Technical press, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.