Columbia subject headings:
Chapman, George, 1559?-1634--Sources.
France--History--16th century.
Oxford, Edward De Vere, Earl of, 1550-1604.
Shakespeare, William, 1564-1616--Authorship--Oxford theory.
Shakespeare, William, 1564-1616. King Lear--Sources.
Shakespeare, William, 1564-1616. Macbeth--Sources.
Harvard subject headings:
Chapman, George, 1559?-1634--Sources.
France--History--16th century.
Oxford, Edward De Vere, Earl of, 1550-1604.
Shakespeare, William, 1564-1616--Authorship--Oxford theory.
Shakespeare, William, 1564-1616. King Lear--Sources.
Shakespeare, William, 1564-1616. Macbeth--Sources.
Princeton subject headings: