TY  - BOOK
AU  - Ullmann, Walter.
TI  - A history of political thought: the Middle Ages
SN  - 0140207783
U1  - 320.0902 23
PY  - 1970///
CY  - Harmondsworth
PB  - Penguin
KW  - Political science
KW  - History
N1  - Bibliography: p. 233-240
ER  -