APA (7th ed.) Citation

Hannigan, R. E. (2002). The new world power: American foreign policy, 1898-1917. University of Pennsylvania Press.

Chicago Style (17th ed.) Citation

Hannigan, Robert E. The New World Power: American Foreign Policy, 1898-1917. Philadelphia: University of Pennsylvania Press, 2002.

MLA (8th ed.) Citation

Hannigan, Robert E. The New World Power: American Foreign Policy, 1898-1917. University of Pennsylvania Press, 2002.