Cita APA (7th ed.)

Williams, G. L., & Williams, A. L. (1974). Crisis in European defence: The next ten years. St. Martin's Press.

Cita Chicago (17th ed.)

Williams, Geofrey Lee, i Alan Lee Williams. Crisis in European Defence: The Next Ten Years. New York: St. Martin's Press, 1974.

Cita MLA (9th ed.)

Williams, Geofrey Lee, i Alan Lee Williams. Crisis in European Defence: The Next Ten Years. St. Martin's Press, 1974.