Knappen, M. M. (1956). An introduction to American foreign policy. Harper.
Chicago Style (17th ed.) CitationKnappen, M. M. An Introduction to American Foreign Policy. New York: Harper, 1956.
MLA (9th ed.) CitationKnappen, M. M. An Introduction to American Foreign Policy. Harper, 1956.
Warning: These citations may not always be 100% accurate.