Columbia subject headings:
Architecture, Carolingian--Europe--History.
Architecture, Carolingian--Europe--Pictorial works.
Architecture, Carolingian--France--History.
Architecture, Carolingian--France--Pictorial works.
Harvard subject headings:
Princeton subject headings:
Architecture, Carolingian--Europe--History.
Architecture, Carolingian--Europe--Pictorial works.
Architecture, Carolingian--France--History.
Architecture, Carolingian--France--Pictorial works.