TY  - BOOK
AU  - Gwatkin, H.M.
AU  - Sehulweis,Harold M. I
TI  - The Cambridge medieval history
U1  - 909 
PY  - 1954///
CY  - London
PB  - At the University Press
KW  - The Christian Roman empire and the foundation of the Teutonic kingdoms
ER  -