Cita APA (7a ed.)

Pierce, R. (2008). Research methods in politics: A practical guide. Sage.

Cita Chicago Style (17a ed.)

Pierce, Roger. Research Methods in Politics: A Practical Guide. Thousand Oaks, CA: Sage, 2008.

Cita MLA (9a ed.)

Pierce, Roger. Research Methods in Politics: A Practical Guide. Sage, 2008.