Cita APA (7th ed.)

Perkins, D. (1963). A history of the Monroe doctrine. Little, Brown.

Cita Chicago (17th ed.)

Perkins, Dexter. A History of the Monroe Doctrine. Boston: Little, Brown, 1963.

Cita MLA (9th ed.)

Perkins, Dexter. A History of the Monroe Doctrine. Little, Brown, 1963.