Spotts, M. F. (2004). Design of machine elements. New Jersey: Pearson Prentice Hall.
Trích dẫn kiểu ChicagoSpotts, M. F. Design of Machine Elements. New Jersey: Pearson Prentice Hall, 2004.
Deismireacht MLASpotts, M. F. Design of Machine Elements. New Jersey: Pearson Prentice Hall, 2004.
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