Columbia subject headings:
Shakespeare, William, 1564-1616--Authorship.
Shakespeare, William, 1564-1616. Sonnets.
Harvard subject headings:
Shakespeare, William, 1564-1616--Authorship.
Shakespeare, William, 1564-1616. Sonnets.
Princeton subject headings:
Shakespeare, William, 1564-1616--Authorship.
Shakespeare, William, 1564-1616. Sonnets.