Joad, C.E.M.
Introduction to modern political theory
Clarendon Press, 1959
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Grimes, Alan P.
Modern political ideologies
Oxford University Press , 1959
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Theory and methods in political science
edited David Marsh and Gerry Stoker
Macmillan, 1995
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Fowler, Robert Booth
Contemporary issues in political theory
Praeger, 1985
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Ebenstein, William
Modern political thought : the great issues
Holt, Rinehart and Winston, 1962
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