Cita APA (7a ed.)

Phillips, S. (2011). Yemen and the politics of permanent crisis. International Institute for Strategic Studies.

Cita Chicago Style (17a ed.)

Phillips, Sarah. Yemen and the Politics of Permanent Crisis. London: International Institute for Strategic Studies, 2011.

Cita MLA (9a ed.)

Phillips, Sarah. Yemen and the Politics of Permanent Crisis. International Institute for Strategic Studies, 2011.