McClelland, J. S. (1996). A history of Western political thought. Routledge.
Lua i Stíl Chicago (17ú heag.)McClelland, J. S. A History of Western Political Thought. London: Routledge, 1996.
Lua MLA (9ú heag.)McClelland, J. S. A History of Western Political Thought. Routledge, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.