APA (7th ed.) Citation

Hannigan, R. E. (2017). The Great War and American foreign policy, 1914-24. PENN, University of Pennsylvania Press.

Chicago Style (17th ed.) Citation

Hannigan, Robert E. The Great War and American Foreign Policy, 1914-24. Philadelphia: PENN, University of Pennsylvania Press, 2017.

MLA (9th ed.) Citation

Hannigan, Robert E. The Great War and American Foreign Policy, 1914-24. PENN, University of Pennsylvania Press, 2017.