TY  - BOOK
AU  - Havighurst,Alfred F.
TI  - The pirenne thesis: analysis, criticism, and revision 
SN  - 0-669-94680-X
PY  - 1976///
CY  - Lexington, Mass.
PB  - D. C. Heath and Company
KW  - Pirenne, Henri
KW  - Middle Ages
KW  - Historiography
ER  -