Cita APA (7th ed.)

Shields, C. D. (1961). Boilers: Types, characteristics, and functions. F.W. Dodge.

Cita Chicago (17th ed.)

Shields, Carl D. Boilers: Types, Characteristics, and Functions. Nueva York: F.W. Dodge, 1961.

Cita MLA (9th ed.)

Shields, Carl D. Boilers: Types, Characteristics, and Functions. F.W. Dodge, 1961.