Columbia subject headings:
Art--Italy--Abruzzo--15th century--Congresses.
Nicola, da Guardiagrele, approximately 1395-approximately 1462--Congresses.
Harvard subject headings:
Art, Italian--Italy--Abruzzi--15th century--Congresses.
Nicola, da Guardiagrele, approximately 1395-approximately 1462--Congresses.
Princeton subject headings:
Nicola, da Guardiagrele, approximately 1395-approximately 1462--Congresses.