Cita APA (7a ed.)

Wiarda, H. J., & Skelley, E. M. (2006). The crisis of American foreign policy: The effects of a divided America. Rowman & Littlefield.

Cita Chicago Style (17a ed.)

Wiarda, Howard J., y Esther M. Skelley. The Crisis of American Foreign Policy: The Effects of a Divided America. Lanham: Rowman & Littlefield, 2006.

Cita MLA (9a ed.)

Wiarda, Howard J., y Esther M. Skelley. The Crisis of American Foreign Policy: The Effects of a Divided America. Rowman & Littlefield, 2006.