APA (7th ed.) Citation

O'Brien. (2001). International law. Cavendish Publishing Limited.

Chicago Style (17th ed.) Citation

O'Brien. International Law. London: Cavendish Publishing Limited, 2001.

MLA (8th ed.) Citation

O'Brien. International Law. Cavendish Publishing Limited, 2001.

Warning: These citations may not always be 100% accurate.