Dyfyniad APA

(1978). Steam: Its generation and use (39th ed.). Babcock & Wilcox.

Dyfyniad Arddull Chicago

Steam: Its Generation and Use. 39th ed. New York: Babcock & Wilcox, 1978.

Dyfyniad MLA

Steam: Its Generation and Use. 39th ed. Babcock & Wilcox, 1978.

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