APA (7th ed.) Citation

Hagen, L. S. (1982). The Crisis in Western security. St. Martin's Press.

Chicago Style (17th ed.) Citation

Hagen, Lawrence S. The Crisis in Western Security. New York: St. Martin's Press, 1982.

MLA (9th ed.) Citation

Hagen, Lawrence S. The Crisis in Western Security. St. Martin's Press, 1982.