(Reprinted many times) Gertrude Bell (1907): The Desert and the Sown (republished 1987) David George Hogarth (1905): The Penetration of Arabia: a Record of Western Knowledge Concerning the Arabian Peninsula.
(Birçok kere yeniden basıldı) Gertrude Bell (1907): The Desert and the Sown (1987'da yeniden yayınlandı) David George Hogarth (1905): The Penetration of Arabia: a Record of Western Knowledge Concerning the Arabian Peninsula.