The medieval world Europe 1100-1350 /
Heer, Friedrich,1916-
Sondheimer, Janet.
London Cardinal
1974
This translation originally published: Cleveland : World Publishing Co. ; London : Weidenfeld and Nicolson, 1962. - Translation of: 'Mittelalter'. Zürich : Kindler, 1961
Bibliography: p.405-418. - Includes index