Adams,Ian. (2000). Fifty Great Political Thinkers. Roultedge.
Cita Chicago (17th ed.)Adams,Ian. Fifty Great Political Thinkers. U.K: Roultedge, 2000.
Cita MLA (9th ed.)Adams,Ian. Fifty Great Political Thinkers. Roultedge, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.