Cita APA (7th ed.)

Donovan, F. R. (1961). The ironclads. [s.n.].

Cita Chicago (17th ed.)

Donovan, Frank Robert. The Ironclads. New York: [s.n.], 1961.

Cita MLA (8th ed.)

Donovan, Frank Robert. The Ironclads. [s.n.], 1961.