HAMROCK, B. J., JACOBSON, B., & SCHIMID, S. R. (1999). Fundamentals of machine elements. McGraw-Hill.

HAMROCK, Bernard J., Bo JACOBSON, and Steven R. SCHIMID. Fundamentals of Machine Elements. Boston: McGraw-Hill, 1999.

HAMROCK, Bernard J., et al. Fundamentals of Machine Elements. McGraw-Hill, 1999.