Cita APA (7th ed.)

Schweller, R. L. (2008). Unanswered threats: Political constraints on the balance of power. Princeton University Press.

Cita Chicago (17th ed.)

Schweller, Randall L. Unanswered Threats: Political Constraints on the Balance of Power. Princeton, N.J.: Princeton University Press, 2008.

Cita MLA (9th ed.)

Schweller, Randall L. Unanswered Threats: Political Constraints on the Balance of Power. Princeton University Press, 2008.