Chwedleu Seith doethon Rufein
Subtitle: o, Lyfr coch Hergest
By: golygwyd gan Henry Lewis.
Contributors: Lewis, Henry, 1889-
Publisher: Gwasg Prifysgol Cymru
Published: 1967
Place of publication: Caerdydd (Wales)
Language: wel
Number of pages: 113
Other titles: Red book of Hergest.
Work titles: Seven sages. Welsh.
Notes: First published in this edition in 1958.

Bibliographical references included in "Byrfoddau" (p. 8-9).