Columbia subject headings:
Celtic literature--History and criticism.
Irish literature--Middle Irish, 1100-1550--History and criticism.
Poppe, Eric.
Welsh literature--1100-1400--History and criticism.
Harvard subject headings:
Celtic literature--Foreign influences--Congresses.
Celtic literature--History and criticism--Congresses.
Irish literature--Foreign influences--Congresses.
Irish literature--Middle Irish, 1100-1550--History and criticism--Congresses.
Welsh literature--1100-1400--Foreign influences--Congresses.
Welsh literature--1100-1400--History and criticism--Congresses.
Princeton subject headings:
Celtic literature--History and criticism.
Irish literature--Middle Irish, 1100-1550--History and criticism.
Poppe, Eric.
Welsh literature--1100-1400--History and criticism.