چرخ‌دنده مخروطی (Persian Wikipedia)

Analysis of information sources in references of the Wikipedia article "چرخ‌دنده مخروطی" in Persian language version.

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books.google.com

  • Fred Herbert Colvin; Frank Arthur Stanley (1914). American Machinists' Handbook and Dictionary of Shop Terms: A Reference Book of math Shop and Drawing Room Data, Methods and Definitions. McGraw-Hill book Company, Incorporated. p. 121. Retrieved 14 August 2014.

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