APA (7th ed.) Citation

Oppenheim, L. F. L., & Lauterpacht, H. (1947). International law: A treatise (6th ed.). Longmans, Green.

Chicago Style (17th ed.) Citation

Oppenheim, Lassa Francis Lawrence, and Hersh Lauterpacht. International Law: A Treatise. 6th ed. London: Longmans, Green, 1947.

MLA (9th ed.) Citation

Oppenheim, Lassa Francis Lawrence, and Hersh Lauterpacht. International Law: A Treatise. 6th ed. Longmans, Green, 1947.