APA (7th ed.) Citation

Coyle, D. C. (1969). The United Nations and how it works. Columbia University Press.

Chicago Style (17th ed.) Citation

Coyle, David Cushman. The United Nations and How It Works. New York: Columbia University Press, 1969.

MLA (9th ed.) Citation

Coyle, David Cushman. The United Nations and How It Works. Columbia University Press, 1969.