Ullmann Walter Law and politics in the middle ages An introduction to the Sources of Medival Political Ideas - London Cambridge University Press U. K. 1975 - 320p. cm. - Booksin Series :The Source of History, Studies in the Uses of Historical Evidence . Bibliography p.307-10; Index:P.311-20 Source: General Book Subjects--Topical Terms: History Dewey Class. No.: Vv, L5