HAMROCK, B. J., JACOBSON, B., & SCHIMID, S. R. (1999). Fundamentals of machine elements. McGraw-Hill.
Dyfyniad Arddull ChicagoHAMROCK, Bernard J., Bo JACOBSON, and Steven R. SCHIMID. Fundamentals of Machine Elements. Boston: McGraw-Hill, 1999.
Dyfyniad MLAHAMROCK, Bernard J., et al. Fundamentals of Machine Elements. McGraw-Hill, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.