TY  - BOOK
AU  - Walter Ullmann
TI  - A history of political thought :  the Middle Ages
AV  - JA82 U4 1965
PY  - 1970///
CY  - Harmondsworth 
PB  - Penguin Books
KW  - Politisches Denken.
KW  -  Ideengeschichte
KW  - Europa
ER  -