APA (7th ed.) Citation

Gibbons, H. A. (1924). America's place in the world. The Century Company.

Chicago Style (17th ed.) Citation

Gibbons, Herbert Adams. America's Place in the World. New York: The Century Company, 1924.

MLA (9th ed.) Citation

Gibbons, Herbert Adams. America's Place in the World. The Century Company, 1924.