APA Citatie

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

Chicago Style citaat

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

MLA citatie

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