Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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