Dyfyniad APA

Brandes, E., & Brook, G. (1992). Smithells Metals refrence Book (7th ed.). Butterworths.

Dyfyniad Arddull Chicago

Brandes, E.A, and G.B Brook. Smithells Metals Refrence Book. 7th ed. Oxford: Butterworths, 1992.

Dyfyniad MLA

Brandes, E.A, and G.B Brook. Smithells Metals Refrence Book. 7th ed. Butterworths, 1992.

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