Ullmann, Walter 1910-
A History of Political Thought: The Middle Ages / Walter Ullmann . - Baltimore-Maryland: Penguin Books, 1970 . - 253 p. ;18 cm..
Europa--Historia --Edad media, 414-1474
A History of Political Thought: The Middle Ages / Walter Ullmann . - Baltimore-Maryland: Penguin Books, 1970 . - 253 p. ;18 cm..
Europa--Historia --Edad media, 414-1474
