Butler, W. E. (1987). International law and the international system. M. Nijhoff.
Chicago Style (17th ed.) CitationButler, William Elliott. International Law and the International System. Dordrecht ; Boston: M. Nijhoff, 1987.
MLA (9th ed.) CitationButler, William Elliott. International Law and the International System. M. Nijhoff, 1987.
Warning: These citations may not always be 100% accurate.