Columbia subject headings:
Shakespeare, William, 1564-1616--Characters--Hamlet.
Shakespeare, William, 1564-1616. Hamlet.
Harvard subject headings:
Shakespeare, William, 1564-1616--Characters--Hamlet.
Shakespeare, William, 1564-1616. Hamlet
Tragedy.
Princeton subject headings:
Shakespeare, William, 1564-1616. Hamlet.
Tragedy.