Houghton, P. S. (1970). Gears, spur, helical, bevel, internal, epicyclic and worm (3rd ed. revised and reset.). Technical P.
Chicago Style (17th ed.) CitationHoughton, P. S. Gears, Spur, Helical, Bevel, Internal, Epicyclic and Worm. 3rd ed. revised and reset. London: Technical P, 1970.
MLA (9th ed.) CitationHoughton, P. S. Gears, Spur, Helical, Bevel, Internal, Epicyclic and Worm. 3rd ed. revised and reset. Technical P, 1970.
Warning: These citations may not always be 100% accurate.