Orthwein, W. C. (2004). Clutches and brakes: Design and selection (2nd ed.). Marcel Dekker.
Lua i Stíl Chicago (17ú heag.)Orthwein, William C. Clutches and Brakes: Design and Selection. 2nd ed. New York: Marcel Dekker, 2004.
Lua MLA (9ú heag.)Orthwein, William C. Clutches and Brakes: Design and Selection. 2nd ed. Marcel Dekker, 2004.
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