Columbia subject headings:
Harvard subject headings:
Civilization, Medieval
Communication in politics--History--To 1500.
Communication--History--To 1500.
Ritual--History--To 1500.
Schreiner, Klaus--Bibliography.
Symbolism in communication--History--To 1500.
Symbolism in politics--History--To 1500.
Princeton subject headings:
Civilization, Medieval.
Signs and symbols.