Huoghton, P. S. (1970). Gears: :spur, helical, bevel, internal, epicyclic and worm. Technical press.
Chicago Style aipamenaHuoghton, P S. Gears: :spur, Helical, Bevel, Internal, Epicyclic and Worm. London: Technical press, 1970.
MLA aipamenaHuoghton, P S. Gears: :spur, Helical, Bevel, Internal, Epicyclic and Worm. Technical press, 1970.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.