Houghton, P. S. (1970). Gears: Spno, belical, bevel internal, epicyclic and worm (2nd ed.). Technical press.
Chicago Edition CitationHoughton, P S. Gears: Spno, Belical, Bevel Internal, Epicyclic and Worm. 2nd ed. London: Technical press, 1970.
MLA Edition CitationHoughton, P S. Gears: Spno, Belical, Bevel Internal, Epicyclic and Worm. 2nd ed. Technical press, 1970.
Warning: These citations may not always be 100% accurate.