Columbia subject headings:
Harvard subject headings:
Africa, North--History--To 647--Sources.
Biclara, João de, 540-624 or 625
Biclara, João de, 540-624 or 625. Chronicon.
Church history--Primitive and early church, ca. 30-600
Zaragoza (Spain)--History--Sources.
Princeton subject headings:
Biclara, João de, 540-624 or 625.