TY  - SER
AU  -  Allies, T. W. 
TI  -  Peter's Rock in Mohammed's Flood, from St. Gregory the Great to St. Leo III 
AV  - BR 
PY  - 2010///
PB  -  Project Gutenberg, 
KW  -  Church history -- Middle Ages, 600-1500
KW  -  Papacy -- History
KW  -  Christianity and other religions -- Islam
KW  -  Papacy
N1  -  Public domain in the USA;  Text
UR  -  http://www.gutenberg.org/ebooks/34172
ER  -