TY  - BOOK
AU  - Knowles, David
AU  - Dimitri Obolensky
AU  - Dimitri Obolensky
TI  - The Christian centuries, Vol II: the middle ages
SN  - 0-232-35605-X
U1  - 270/KNO/C 
KW  -  Catholic Church--History
KW  -  Church history
N1  -  Catholic Church--History; 16682
ER  -