APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Steam: Its Generation and Use. 39a. ed. Nueva York: Babcock & Wilcox, 1978.

MLA (9th ed.) Citation

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