Columbia subject headings:
Music and literature--Congresses.
Opera--Congresses.
Shakespeare, William, 1564-1616--Adaptations--History and criticism--Congresses.
Harvard subject headings:
Music and literature--Congresses.
Opera--Congresses
Shakespeare, William, 1564-1616--Adaptations--History and criticism--Congresses.
Princeton subject headings:
Music and literature--Congresses.
Opera--Congresses.
Shakespeare, William, 1564-1616--Adaptations--History and criticism--Congresses.