Columbia subject headings:
Francis, of Assisi, Saint, 1182-1226--Drama.
Operas--Scores.
Harvard subject headings:
Francis, of Assisi, Saint, 1182-1226--Drama.
Operas--Scores
Princeton subject headings:
Francis, of Assisi, Saint, 1182-1226--Drama.
Operas--Scores.
Operas.
Scores.