Columbia subject headings:
Epic poetry, Spanish--History and criticism.
Spanish poetry--To 1500--History and criticism.
Harvard subject headings:
Civilization, Medieval, in literature.
Epic poetry, Spanish--History and criticism.
Spanish poetry--To 1500--History and criticism
Princeton subject headings:
Cantar de mío Cid.
Crónica rimada del Cid.
Poema de Fernán González.
Spanish literature--To 1500--History and criticism.