APA (7th ed.) Citation

Kaplan, M. A., & Katzenbach, N. d. (1961). The political foundations of international law. John Wiley & Sons.

Chicago Style (17th ed.) Citation

Kaplan, Morton A., and Nicholas deB Katzenbach. The Political Foundations of International Law. New York [etc.]: John Wiley & Sons, 1961.

MLA (9th ed.) Citation

Kaplan, Morton A., and Nicholas deB Katzenbach. The Political Foundations of International Law. John Wiley & Sons, 1961.