APA (7th ed.) Citation

Lauren, P. G. (1979). Diplomacy: New approaches in history, theory, and policy. The Free Press.

Chicago Style (17th ed.) Citation

Lauren, Paul Gordon. Diplomacy: New Approaches in History, Theory, and Policy. New York: The Free Press, 1979.

MLA (9th ed.) Citation

Lauren, Paul Gordon. Diplomacy: New Approaches in History, Theory, and Policy. The Free Press, 1979.