Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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