Columbia subject headings:
Beatus, Saint, Presbyter of Liebana, -798. In Apocalipsin--Congresses.
Harvard subject headings:
Beatus, Saint, Presbyter of Liebana, -798. In Apocalipsin--Congresses.
Princeton subject headings:
Beatus, Saint, Presbyter of Liébana, d. 798. Comentario al Apocalipsis--Congresses.