Levine, H. M. (1993). Political issues debated: An introduction to politics (4th ed.). Prentice Hall.
Citace podle Chicago (17th ed.)Levine, Herbert M. Political Issues Debated: An Introduction to Politics. 4th ed. Englewood Cliffs, N.J: Prentice Hall, 1993.
Citace podle MLA (9th ed.)Levine, Herbert M. Political Issues Debated: An Introduction to Politics. 4th ed. Prentice Hall, 1993.
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