Columbia subject headings:
Bono, Giovanni, Saint, 1168 or 1169-1249.
Harvard subject headings:
Bono, Giovanni, Saint, 1169-1249.
Christian saints--Italy--Emilia-Romagna--Biography.
Christian saints--Italy--Emilia-Romagna--Early works to 1800.
Princeton subject headings:
Bono, Giovanni, Saint, 1169-1249.
Christian saints--Italy--Emilia-Romagna--Biography.
Christian saints--Italy--Emilia-Romagna--Early works to 1800.