TY  - BOOK
AU  - Tierney, Brian
AU  - The crisis of church and state, 1050-1300
TI  - The crisis of church and state, 1050-1300 
SN  - 0802067018
PY  - 1999///
CY  - Toronto 
PB  - University of Toronto Press 
KW  - Church and state - History
KW  - Popes - Temporal power - History
N1  - Includes bibliographical references
ER  -