Columbia subject headings:
Manuscripts, Medieval--Wales.
Manuscripts, Welsh.
Wales--In literature.
Welsh literature--To 1550--Criticism, Textual.
Harvard subject headings:
Manuscripts, Medieval--Wales.
Manuscripts, Welsh.
Wales--In literature.
Welsh literature--To 1550--Criticism, Textual.
Princeton subject headings:
Manuscripts, Medieval--Wales.
Manuscripts, Welsh.