Dyfyniad APA

(2003). Principles of public international law (6th ed.). Oxford University Press.

Dyfyniad Arddull Chicago

Principles of Public International Law. 6th ed. Oxford: Oxford University Press, 2003.

Dyfyniad MLA

Principles of Public International Law. 6th ed. Oxford University Press, 2003.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.