APA (7th ed.) Citation

Walker, T. A., & Butler, W. E. (1893). The science of international law [microform]. C. J. Clay and sons.

Chicago Style (17th ed.) Citation

Walker, Thomas Alfred, and W. E. Butler. The Science of International Law [microform]. London: C. J. Clay and sons, 1893.

MLA (9th ed.) Citation

Walker, Thomas Alfred, and W. E. Butler. The Science of International Law [microform]. C. J. Clay and sons, 1893.