Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.