Delury, G. E. (1987). World encyclopedia of political systems & parties (2nd ed.). Facts on File Pub.
Lua i Stíl Chicago (17ú heag.)Delury, George E. World Encyclopedia of Political Systems & Parties. 2nd ed. New York: Facts on File Pub, 1987.
Lua MLA (9ú heag.)Delury, George E. World Encyclopedia of Political Systems & Parties. 2nd ed. Facts on File Pub, 1987.
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