SPOTTS, M. (1985). Design of machine elements. ed.-- 6. Prentice-Hall of India.
Dyfyniad Arddull ChicagoSPOTTS, M.F. Design of Machine Elements. Ed.-- 6. New Delhi: Prentice-Hall of India, 1985.
Dyfyniad MLASPOTTS, M.F. Design of Machine Elements. Ed.-- 6. Prentice-Hall of India, 1985.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.