Columbia subject headings:
Harvard subject headings:
Fry, Roger, 1866-1934.
Piero, della Francesca, 1416?-1492--Criticism and interpretation.
Princeton subject headings:
Fry, Roger, 1866-1934.
Piero, della Francesca, 1416?-1492--Criticism and interpretation.
Piero, della Francesca, 1416?-1492--Public opinion.