Cita APA

Bernstein, R. A. (1992). An introduction to political science methods (3rd ed.). Prentice Hall.

Citación estilo Chicago

Bernstein, Robert A. An Introduction to Political Science Methods. 3rd ed. Englewood Cliffs: Prentice Hall, 1992.

Cita MLA

Bernstein, Robert A. An Introduction to Political Science Methods. 3rd ed. Prentice Hall, 1992.