Cita APA (7a ed.)

Foreign Policy Research Institute & University of Pennsylvania. International Relations Graduate Group. Orbis. Foreign Policy Research Institute.

Cita Chicago Style (17a ed.)

Foreign Policy Research Institute y University of Pennsylvania. International Relations Graduate Group. Orbis. [Philadelphia]: Foreign Policy Research Institute.

Cita MLA (8a ed.)

Foreign Policy Research Institute y University of Pennsylvania. International Relations Graduate Group. Orbis. Foreign Policy Research Institute.