Medieval cities : their origins and the revival of trade / by Henri Pirenne ; translated from the French by Frank D. Halsey. Villes du Moyen Age. English Pirenne, Henri, 1862-1935. Cities and towns, Medieval. Commerce History. 301.36 PIM Includes index. Bibliography: p. [235]-240. Princeton : Princeton University Press, c1952. c1952. 1970 Text xii, 253 p. ; eng engfre