APA (7th ed.) Citation

Heiberg, W. L. (1983). The sixteenth nation: Spain's role in NATO. National Defense University Press.

Chicago Style (17th ed.) Citation

Heiberg, William L. The Sixteenth Nation: Spain's Role in NATO. Fort Lesley J. McNair, Washington, DC: National Defense University Press, 1983.

MLA (9th ed.) Citation

Heiberg, William L. The Sixteenth Nation: Spain's Role in NATO. National Defense University Press, 1983.