APA (7th ed.) Citation
Schulzinger, R. D. (1998). U.S. diplomacy since 1900 (4. ed.). Oxford University Press.
Chicago Style (17th ed.) Citation
Schulzinger, Robert D. U.S. Diplomacy Since 1900. 4. ed. New York: Oxford University Press, 1998.
MLA (9th ed.) Citation
Schulzinger, Robert D. U.S. Diplomacy Since 1900. 4. ed. Oxford University Press, 1998.
Warning: These citations may not always be 100% accurate.