MEDIEVAL TRADE AND INDUSTRY  - General Bibliography 
 09 URBAN SOCIETY.                                              
- Cipolla, ed., C.M (), Fontana Economic History  I ch. 2.
 - Heers, J. (), Family Clans in the Middle Ages - a study of Political and Social Structures in urban areas.
 - Hibbert, A.B. (195l), The Origins of the Medieval Town Patriciate,   Past and Present.
 - Pirenne, J. (), Medieval Cities   chs. V & VI.
 - Rorig, F. (), The Medieval Town  ch. 7.
 - Salzman, L.F. (), English Life in the Middle Ages  ch. III.
 - Swanson H. (1989), Medieval Artisans: an urban class in late Medieval England
 - Thrupp, S. (), The Merchant Class of Medieval London  ch. I.
 - Williams, G.A. (), Medieval London  ch. III.