Columbia subject headings:
Kilhwch and Olwen.
Tales--Ireland--History and criticism.
Tales--Wales--History and criticism.
Tochmarc Emire.
Harvard subject headings:
Culhwch and Olwen.
Tales--Ireland--History and criticism.
Tales--Wales--History and criticism
Tochmarc Emire
Princeton subject headings:
Legends, Celtic.
Mal y kavas Kulhwch Olwen.
Mythology, Celtic.
Tochmarc Emire.