Dyfyniad APA

Smithells, C. J. (1976). Metals reference book. London: Butterworths.

Dyfyniad Arddull Chicago

Smithells, Colin J. Metals Reference Book. London: Butterworths, 1976.

Dyfyniad MLA

Smithells, Colin J. Metals Reference Book. London: Butterworths, 1976.

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