12th century Europe; an interpretive essay - Packard, Sidney Raymond (University of Massachusetts Press, 1973)
Bibliography: p. [327]-348
Keywords: Twelfth century. / http://id.loc.gov/authorities/subjects/sh85139013; Civilization, Medieval / 12th century. / http://id.loc.gov/authorities/subjects/sh85026464; Europe / Civilization. / http://id.loc.gov/authorities/subjects/sh85045637