Dyfyniad APA

Williams, S. (1987). An Introduction to International law (2nd.ed.). Butterworths.

Dyfyniad Arddull Chicago

Williams, S.A. An Introduction to International Law. 2nd.ed. Toronto: Butterworths, 1987.

Dyfyniad MLA

Williams, S.A. An Introduction to International Law. 2nd.ed. Butterworths, 1987.

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