Columbia subject headings:
Berengar I, Holy Roman Emperor, -924--Poetry.
Gesta Berengarii.
Harvard subject headings:
Berengar I, Holy Roman Emperor, -924--Poetry.
Berengario I, King of Italy, -924--Poetry.
Gesta Berengarii.
Princeton subject headings:
Berengario, King of Italy, d. 924--Poetry.
Gesta Berengarii.
Poetry.