Bernstein, R. A., & Dyer, J. A. (1984). An introduction to political science methods (2nd ed.). Prentice-Hall.
Cita Chicago Style (17a ed.)Bernstein, Robert A., y James A. Dyer. An Introduction to Political Science Methods. 2nd ed. Englewood Cliffs: Prentice-Hall, 1984.
Cita MLA (8a ed.)Bernstein, Robert A., y James A. Dyer. An Introduction to Political Science Methods. 2nd ed. Prentice-Hall, 1984.
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