Παραπομπή APA
(1975). Modern political parties: Approaches to comparative politics. Chicago: The University of Chicago Press.
Παραπομπή Chicago StyleModern Political Parties: Approaches to Comparative Politics. Chicago: The University of Chicago Press, 1975.
Παραπομπή MLAModern Political Parties: Approaches to Comparative Politics. Chicago: The University of Chicago Press, 1975.
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