APA (7th ed.) Citation

Coolidge, A. C. (1908). The United States as a world power. Macmillan Company.

Chicago Style (17th ed.) Citation

Coolidge, Archibald Cary. The United States as a World Power. New York: Macmillan Company, 1908.

MLA (9th ed.) Citation

Coolidge, Archibald Cary. The United States as a World Power. Macmillan Company, 1908.