APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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