Willoughby, J. (2008). Perils of Empire. International Institute of Islamic Thought.
Cita Chicago Style (17a ed.)Willoughby, Jay. Perils of Empire. International Institute of Islamic Thought, 2008.
Cita MLA (8a ed.)Willoughby, Jay. Perils of Empire. International Institute of Islamic Thought, 2008.
Precaución: Estas citas no son 100% exactas.