Cita APA (7a ed.)

Oppenheim.L & Oppenheim .L. (1974). International Law A treatise (8th ed.). Longman Group Ltd.

Cita Chicago Style (17a ed.)

Oppenheim.L y Oppenheim .L. International Law A Treatise. 8th ed. Londan: Longman Group Ltd, 1974.

Cita MLA (9a ed.)

Oppenheim.L y Oppenheim .L. International Law A Treatise. 8th ed. Longman Group Ltd, 1974.