Roskin, M. G. (1982). Countries and concepts: An introduction to comparative politics. Prentice-Hall.
Chicago-viite (17. p.)Roskin, Michael G. Countries and Concepts: An Introduction to Comparative Politics. Englewood Cliffs, N.J.: Prentice-Hall, 1982.
MLA-viite (9. p.)Roskin, Michael G. Countries and Concepts: An Introduction to Comparative Politics. Prentice-Hall, 1982.
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