Title: Astudiaethau ar yr hengerdd = Studies in old Welsh poetry : cyflwynedig i Syr Idris Foster /
Authors: Foster, Idris Llewelyn, 1911-; Bromwich, Rachel.; Jones, R. Brinley.
Publisher: Gwasg Prifysgol Cymru,
Year: 1978
Subjects: Foster, Idris Llewelyn,; Welsh poetry History and criticism.