Great Britain. Foreign Office. Historical Section. (1920). Eritrea. H.M.S.O..
Lua i Stíl Chicago (17ú heag.)Great Britain. Foreign Office. Historical Section. Eritrea. London: H.M.S.O., 1920.
Lua MLA (8ú heag.)Great Britain. Foreign Office. Historical Section. Eritrea. H.M.S.O., 1920.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.