Παραπομπή σε μορφή APA (7η εκδ.)

Harpviken, K. B. (2010). Troubled regions and failing states: The clustering and contagion of armed conflicts. Emerald.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Harpviken, Kristian Berg. Troubled Regions and Failing States: The Clustering and Contagion of Armed Conflicts. Bingley, UK: Emerald, 2010.

Παραπομπή σε μορφή MLA (8th εκδ.)

Harpviken, Kristian Berg. Troubled Regions and Failing States: The Clustering and Contagion of Armed Conflicts. Emerald, 2010.