APA (7e ed.) Bronvermelding

Pennings, P. (2006). Doing research in political science (2nd ed.). Sage.

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

Pennings, Paul. Doing Research in Political Science. 2nd ed. Sage, 2006.