Thorkild Hansen ; translated by James and Kathleen McFarlane., Main Heritage Shelves General, DS206.H313 1964, Book, Item-ID: i10057924, BIB-ID: 1007428, Includes bibliography.
Jørgen Bisch ; translated from the Danish by Reginald Spink., Original title: Bag arabiens slør., Main Heritage Compact General, DS208 .B57 1962, Reference, Item-ID: i16875990, BIB-ID: 1511039
H. St. J.B. Philby., Reprint. Original published: London : Golden Cockerell Press, 1943., Main Heritage Shelves General, DS207 .P45 1946, Book, Item-ID: i15531168, BIB-ID: 1006055
[prepared by the Oxford sub-centre of the Naval Intelligence Division]., "B.R. 514", Main Heritage Shelves General, DS107.3 .G74 1943, Book, Item-ID: i15801561, BIB-ID: 1017502