Columbia subject headings:
Ballads, Spanish.
Spanish poetry--Classical period, 1500-1700--History and criticism.
Spanish poetry--To 1500--History and criticism.
Harvard subject headings:
Ballads, Spanish.
Folk songs, Spanish.
Spanish poetry--Classical period, 1500-1700--History and criticism
Spanish poetry--To 1500--History and criticism
Princeton subject headings:
Ballads, Spanish.
Folk songs, Spanish.
Spanish poetry--Classical period, 1500-1700--History and criticism.
Spanish poetry--Early to 1500--History and criticism.