Columbia subject headings:
Boiardo, Matteo Maria, 1440 or 1441-1494--Criticism and interpretation.
Guarino, Vernoese, 1374-1460--Criticism and interpretation.
Italian drama--Italy--Ferrara--History and criticism.
Italian drama--To 1700--History and criticism.
Theater--Italy--Ferrara--History.
Harvard subject headings:
Italian drama--To 1700--History and criticism.
Theater--Italy--Ferrara--History--15th century.
Princeton subject headings:
Italian drama--To 1700--History and criticism.
Theater--Italy--Ferrara--History--Medieval, 500-1500.