Columbia subject headings:
Chienti River Valley (Italy)--History.
Italy--History--Carolingian rule, 774-887.
Italy--History--Germanic rule, 962-1268.
Italy--History--Period of the Italian Kings, 887-962.
Harvard subject headings:
Chienti River Valley (Italy)--Buildings, structures, etc..
Chienti River Valley (Italy)--History.
Italy--History--Carolingian rule, 774-887.
Italy--History--Germanic rule, 962-1268.
Italy--History--Period of the Italian Kings, 887-962.
Princeton subject headings:
Chienti River Valley (Italy)--Buildings, structures, etc..
Chienti River Valley (Italy)--History.
Italy--History--Carolingian rule, 774-887.
Italy--History--Germanic rule, 962-1268.
Italy--History--Period of the Italian Kings, 887-962.