APA (7th ed.) Citation

Gaitskell, H. (1957). The challenge of coexistence. Harvard University Press.

Chicago Style (17th ed.) Citation

Gaitskell, Hugh. The Challenge of Coexistence. Cambridge: Harvard University Press, 1957.

MLA (9th ed.) Citation

Gaitskell, Hugh. The Challenge of Coexistence. Harvard University Press, 1957.