Houghton, P. S. (1970). Gears: Spno, belical, bevel internal, epicyclic and worm (2nd ed.). Technical press.
Chicago Stili AlıntıHoughton, P S. Gears: Spno, Belical, Bevel Internal, Epicyclic and Worm. 2nd ed. London: Technical press, 1970.
MLA AlıntıHoughton, P S. Gears: Spno, Belical, Bevel Internal, Epicyclic and Worm. 2nd ed. Technical press, 1970.
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