APA (7th ed.) Citation

Perkins, D. (1927). The Monroe doctrine. Peter Smith.

Chicago Style (17th ed.) Citation

Perkins, Dexter. The Monroe Doctrine. Gloucester, Mass: Peter Smith, 1927.

MLA (9th ed.) Citation

Perkins, Dexter. The Monroe Doctrine. Peter Smith, 1927.

Warning: These citations may not always be 100% accurate.