Collier, P., & Sambanis, N. (2002). Understanding Civil War: A New Agenda.
Chicago Style aipamenaCollier, P., and N. Sambanis. Understanding Civil War: A New Agenda. 2002.
MLA aipamenaCollier, P., and N. Sambanis. Understanding Civil War: A New Agenda. 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.