APA (7th ed.) Citation

Simma, B., Mosler, H., & United Nations. (1994). The Charter of the United Nations: A commentary. Oxford University Press.

Chicago Style (17th ed.) Citation

Simma, Bruno, Hermann Mosler, and United Nations. The Charter of the United Nations: A Commentary. Oxford ; New York: Oxford University Press, 1994.

MLA (8th ed.) Citation

Simma, Bruno, et al. The Charter of the United Nations: A Commentary. Oxford University Press, 1994.