APA (7th ed.) Citation

Schulzinger, R. D. (2008). U.S. diplomacy since 1900 (6. ed.). Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Schulzinger, Robert D. U.S. Diplomacy Since 1900. 6. ed. New York [u.a.]: Oxford Univ. Press, 2008.

MLA (9th ed.) Citation

Schulzinger, Robert D. U.S. Diplomacy Since 1900. 6. ed. Oxford Univ. Press, 2008.