There has been data ("The Sources of Protracted Conflict in the Western Sahara - Algerian Hegemony, Spanish Decolonization, Ceasefire, UN Problems, Algeria and Polisario Front, SADR, Tindouf Region, Morocco, ISIS, al-Qaeda") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Tue Jan 28 04:35:42 2020, so the data displayed here has been removed .