World encyclopedia of political systems & parties (second edition. volume I : Afghanistan - Luxemburg)
edited by George Delury
Facts on File, 1987
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Maor
Political Parties & Party Systems
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Ware, Alan
Political parties and party systems / Alan Ware
Oxford University Press, 1996
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Maor
political Parties.....
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Maor, Moshe
Political parties and party systems : comparative approaches and the british experience
Routledge, 1997
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