Cita APA (7a ed.)

Campbell, K. M., & Steinberg, J. (2008). Difficult Transitions: Foreign Policy Troubles at the Outset of Presidential Power. Brookings Institution Press.

Cita Chicago Style (17a ed.)

Campbell, Kurt M., y James Steinberg. Difficult Transitions: Foreign Policy Troubles at the Outset of Presidential Power. Washington, D.C.: Brookings Institution Press, 2008.

Cita MLA (8a ed.)

Campbell, Kurt M., y James Steinberg. Difficult Transitions: Foreign Policy Troubles at the Outset of Presidential Power. Brookings Institution Press, 2008.