Dyfyniad APA

Spotts, M. F. (1991). Design of machine elements (6th ed.). Prentice-Hall.

Dyfyniad Arddull Chicago

Spotts, M. F. Design of Machine Elements. 6th ed. New York: Prentice-Hall, 1991.

Dyfyniad MLA

Spotts, M. F. Design of Machine Elements. 6th ed. Prentice-Hall, 1991.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.