APA (7th ed.) Citation

Azan, P., & Coolidge, J. L. (1918). The warfare of to-day. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Azan, Paul, and Julian Lowell Coolidge. The Warfare of To-day. Boston: Houghton Mifflin, 1918.

MLA (9th ed.) Citation

Azan, Paul, and Julian Lowell Coolidge. The Warfare of To-day. Houghton Mifflin, 1918.