APA (7th ed.) Citation

Thirlway, H. W. A. (2019). The sources of international law (Second edition.). Oxford University Press.

Chicago Style (17th ed.) Citation

Thirlway, H. W. A. The Sources of International Law. Second edition. Oxford, United Kingdom: Oxford University Press, 2019.

MLA (9th ed.) Citation

Thirlway, H. W. A. The Sources of International Law. Second edition. Oxford University Press, 2019.