Cita APA (7a ed.)

Johnson, J. B., & Reynolds, H. T. (2012). Political science research methods (7th ed.). Sage [etc.].

Cita Chicago Style (17a ed.)

Johnson, Janet Buttolph, y H. T. Reynolds. Political Science Research Methods. 7th ed. Beverly Hills [etc.]: Sage [etc.], 2012.

Cita MLA (9a ed.)

Johnson, Janet Buttolph, y H. T. Reynolds. Political Science Research Methods. 7th ed. Sage [etc.], 2012.