Great Britain. Foreign Office. Historical Section. (1920). Eritrea. H.M.S.O..
Dyfyniad Arddull ChicagoGreat Britain. Foreign Office. Historical Section. Eritrea. London: H.M.S.O., 1920.
Dyfyniad MLAGreat Britain. Foreign Office. Historical Section. Eritrea. H.M.S.O., 1920.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.