Allardt, E., & Littunen, Y. (1964). Cleavages, ideologies and party systems: Contributions to comparative political sociology. The Academic Bookstore.
Citace podle Chicago (17th ed.)Allardt, Erik, a Yrjo Littunen. Cleavages, Ideologies and Party Systems: Contributions to Comparative Political Sociology. Helsinki: The Academic Bookstore, 1964.
Citace podle MLA (9th ed.)Allardt, Erik, a Yrjo Littunen. Cleavages, Ideologies and Party Systems: Contributions to Comparative Political Sociology. The Academic Bookstore, 1964.
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