Adams,Ian. (2000). Fifty Great Political Thinkers. Roultedge.
Lua i Stíl Chicago (17ú heag.)Adams,Ian. Fifty Great Political Thinkers. U.K: Roultedge, 2000.
Lua MLA (9ú heag.)Adams,Ian. Fifty Great Political Thinkers. Roultedge, 2000.
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