8. Al-Bakri, Book of Kingdoms and Roads, French tr. By Defremery, J. Asiatique, 1849.
9. Ballas, J A., Beitrage zur Kenntnis der Trierischen Volkssprache (1903).
10. Bar Hebraeus, Chronography (Oxford, 1932).
11. Barker, F., 'Crusades' in Enc. Britannica, 1973 printing.
12. Baron, S. W., A Social and Religious History of the Jews, Vols. III and IV (New York, 1957).
13. Bartha, A., A IX-X Szazadi Magyar Tarsadalom (Hungarian Society in the 9 th-10th Centuries) (Budapest, 1968).
14. Barthold, V., see Gardezi and Hundud al Alam.
15. Beddoe, J., 'On the Physical Characters of the Jews', Trans. Ethn. Soc., Vol. I pp. 222-37, London, 1861.
16. Ben Barzillay, Jehudah, Sefer ha-Ittim ('Book of the Festivals') (circa 1100).
17. Ben-Daud, Ibrahim, Sefer ha-Kabbalah, in Mediaeval Jewish Chronicles, ed. Neubauer, I, 79.
18. Benjamin of Tudela, The Itinerary of Rabbi Benjamin of Tudela, Asher, A., tr. And ed., 2vols. (London and Berlin, 1841).
19. Blake, R. P., and Frye, R. N., 'Notes on the Risala of Ibn Fadlan' in Byzantia Metabyzantina, Vol. I, Part II, 1919.
20. Brutzkus, J., 'Chasaren' in Jewish Enc. (New Jork, 1901-06).
21. Bury, J. B. A History of the Eastern Roman Empire (London, 1912).
22. Bury, J. B., Byzantinische Zeitschrift XIV, pp. 511-70.
23. Buxtorf, J., fil., ed., Jehuda Halevi, Liber Cosri (Basle 1660).
24. Carpini, The Texts and Versions of John de Piano Carpini, ed. Hakluyt, Works, Extra Series v. 13 (Hakluyt Soc., 1903).
25. Cassel, Paulus (Selig), Magyarische Alterthumer (Berlin, 1847).
26. Cassel, Paulus (Selig), Der Chasarische Konigsbrief aus dem 10. Jahrhundert (Berlin, 1876).
27. Cedrenus, Georgius, ed. Bekker (Bonn, 1839).
28. Chwolson, D. A., Eighteen Hebrew Grave Inscriptions from the Crimea (in German: St Petersburg, 1865) (in Russian: Moskow, 1869).
29. Chwolson, D. A, Corpus of Hebrew Inscriptions, German ed. (St Petersburg, 1882).
30. Comas, J., 'The Race Question in Modern Science' (UNESCO, Paris, 1958).
31. Constantine Porphyrogenitus, De Administrando Imperio, revised 2nd ed. of Moravcsik and Jenkins text (Washington DC, 1967).
32. Constantine Porphyrogenitus, De Cerimoniis, ed., with commentary, A. Vogt (Paris, 1935-40).
33. Dimaski, Muhammad, Manuel de la Cosmographie du Moyen Age (Copenhague, 1874).
34. Disraeli, B., The Wondrous Tale of Alroy (London, 1833).
35 Druthmar of Aquitania, Christian, Expositio on Evangelium Mattei, in Migne, Patrologia Latina (Paris 1844-55).
36. Dubnow, S., Weltgeschichte des Judischen Volkes, Band IV (Berlin 1926).
37. Dunlop, D. M. The History of the Jewish Khazars (Princeton, 1954).
38. Eldad ha-Dani, Relations d'Eldad le Danite, Voyageur du IX-e Siecle (Paris, 1838).
39. Fishberg, M., The Jews — A Study of Race and Enviroment (London and Felling-on-Tyne, 1911).
40. Fraehn, Khazars, Memoirs of the Russian Academy (1822).
41. Frazer, Sir James, 'The Killing of the Khazar Kings' in Folklore, XXVIII, 1917.
42. Frye, R. N., see Blake, R. P.
43. Fuhrmann, Alt— und Neuosterreich (Wien, 1737).
44. Gardezi, Russian tr. Barthold, Academie Imperiale des Sciences, serie VIII, Vol. I, No. 4 (St Petersburg, 1897).
45. Gibb, H. A. R., and de Goeje, M. J., article on 'Arab Historiography' in Enc. Britannica, 1955 printing.
46. Gibbon, E., The History of the Decline and Fall of the Roman Empire, Vol. V (2nd ed., London, 1901).
47. Goeje, de, ed., Bibliotheca Geographorum Arabicorum (Bonn).
48. Goeje, de, see Gibb, H. A. R.
49 Gregoire, H., 'Le «Glozel» Khazare', Byzantion, 1937, pp. 225-66.
50. Graetz, H. H, History of the Jews (Philadelphia, 1891-98).
51. Halevi, Jehuda, Kitab al Khasari, tr. Hirschfeld, new revised ed. (London, 1931); see also Buxtorf, J, fil.
52. Harkavy, A. E. 'Ein Briefwechsel zwischen Cordova und Astrachan zur Zeit Swjatoslaws (um 960), als Beitrag zur alten Geschichte Sud-Russlands' in Russische Revue, Vol. VI, 1875, pp.69-97.
53. Harkavy, A. E, Altiudische Denkmaler aus der Krim, Memoirs of the Russland Academy (1876)