Dyfyniad APA

Tunkin, G. I., & Butler, W. E. (1974). Theory of International Law. Allen & Unwin.

Dyfyniad Arddull Chicago

Tunkin, G I., and William E. Butler. Theory of International Law. London: Allen & Unwin, 1974.

Dyfyniad MLA

Tunkin, G I., and William E. Butler. Theory of International Law. Allen & Unwin, 1974.

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