William R. Thompson. Handbook of International Rivalries: 1494-2010. SAGE.
Cita Chicago (17th ed.)William R. Thompson. Handbook of International Rivalries: 1494-2010. SAGE.
Cita MLA (8th ed.)William R. Thompson. Handbook of International Rivalries: 1494-2010. SAGE.
Atenció: Aquestes cites poden no estar 100% correctes.