Columbia subject headings:
Light in art.
Piero, della Francesca, 1416?-1492--Criticism and interpretation.
Shades and shadows in art.
Harvard subject headings:
Light in art
Piero, della Francesca, 1416?-1492--Criticism and interpretation.
Shades and shadows in art.
Princeton subject headings:
Light in art.
Piero, della Francesca, 1416?-1492--Criticism and interpretation.
Shades and shadows in art.