ISAAK, A. C. (1981). Scope and methods of political science: An introduction to the methodology of political inquiry. 3rd ed. (3rd ed.). The Dorsey Press.
Citace podle Chicago (17th ed.)ISAAK, Alan C. Scope and Methods of Political Science: An Introduction to the Methodology of Political Inquiry. 3rd Ed. 3rd ed. Homewood, Illf: The Dorsey Press, 1981.
Citace podle MLA (9th ed.)ISAAK, Alan C. Scope and Methods of Political Science: An Introduction to the Methodology of Political Inquiry. 3rd Ed. 3rd ed. The Dorsey Press, 1981.
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