APA (7th ed.) Citation

Nicolson, H. (1962). The evolution of diplomacy. Colliers Books.

Chicago Style (17th ed.) Citation

Nicolson, Harold. The Evolution of Diplomacy. New York: Colliers Books, 1962.

MLA (9th ed.) Citation

Nicolson, Harold. The Evolution of Diplomacy. Colliers Books, 1962.

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