Norman F. Cantor: Medieval History. The Life and Death of a Civilization. Second Edition. The Macmillan Company, London, Collier-Macmillan, 1969. xxiii, 584 s. Ill. 15 kort. 95 sh. Jeffrey Burton Russell: Medieval Civilization. New York, London, Sydney, John Wiley & Sons, 1968. xiii, 635 s. Ill. 17 kort. 95 sh. - Albrectsen, Esben (Historisk Tidsskrift, 1973)