Columbia subject headings:
Cave churches--Italy, Southern.
Mural painting and decoration, Byzantine--Italy, Southern.
Mural painting and decoration--Italy, Southern.
Harvard subject headings:
Cave churches--Italy, Southern.
Mural painting and decoration, Byzantine--Italy, Southern.
Mural painting and decoration--Italy, Southern.
Princeton subject headings:
Cave churches--Italy, Southern.
Mural painting and decoration, Byzantine--Italy, Southern.
Mural painting and decoration--Italy, Southern.