by Rudolph Said-Ruete ; with a foreword by Major-Gen. Sir Percy Cox., "Genealogical table of members of the Al Bu Said dynasty": p. [183] "Sources: p. 184., Main Heritage Shelves General, DS247.O6 .S25 1929, Book, Item-ID: i2238411x, BIB-ID: 2395435, "Bibliography": pages 185-192.