Cita APA

Pennings, P., Keman, H., & Kleinnijenhuis, J. (2006). Doing research in political science (2nd ed.). London ; Thousand Oaks, Calif.: Sage.

Citación estilo Chicago

Pennings, Paul., Hans Keman, and J. Kleinnijenhuis. Doing Research in Political Science. 2nd ed. London ; Thousand Oaks, Calif.: Sage, 2006.

Cita MLA

Pennings, Paul., Hans Keman, and J. Kleinnijenhuis. Doing Research in Political Science. 2nd ed. London ; Thousand Oaks, Calif.: Sage, 2006.