Cita APA (7a ed.)

Poetker, J. S. (1967). The Monroe doctrine. C. E. Merrill Books.

Cita Chicago Style (17a ed.)

Poetker, Joel S. The Monroe Doctrine. Columbus, Ohio: C. E. Merrill Books, 1967.

Cita MLA (8a ed.)

Poetker, Joel S. The Monroe Doctrine. C. E. Merrill Books, 1967.