Stutz, C. C. (1905). Formulas in gearing (4th ed.). Brown & Sharpe Manufacturing Co..
Lua i Stíl Chicago (17ú heag.)Stutz, Charles C. Formulas in Gearing. 4th ed. Providence, R. I.: Brown & Sharpe Manufacturing Co., 1905.
Lua MLA (8ú heag.)Stutz, Charles C. Formulas in Gearing. 4th ed. Brown & Sharpe Manufacturing Co., 1905.
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