APA (7th ed.) Citation

Butler, W. E. (1987). International law and the international system. M. Nijhoff.

Chicago Style (17th ed.) Citation

Butler, William Elliott. International Law and the International System. Dordrecht ; Boston: M. Nijhoff, 1987.

MLA (9th ed.) Citation

Butler, William Elliott. International Law and the International System. M. Nijhoff, 1987.

Warning: These citations may not always be 100% accurate.