HAMROCK, B. J., JACOBSON, B., & SCHIMID, S. R. (1999). Fundamentals of machine elements. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)HAMROCK, Bernard J., Bo JACOBSON, agus Steven R. SCHIMID. Fundamentals of Machine Elements. Boston: McGraw-Hill, 1999.
Lua MLA (9ú heag.)HAMROCK, Bernard J., et al. Fundamentals of Machine Elements. McGraw-Hill, 1999.
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