Pedeir keinc y Mabinogi, allan o Lyfr gwyn Rhydderch gan Ifor Williams.
Contributors: Williams, Ifor, Sir, 1881-1965.
Edition: [2. argraffiad]
Publisher: Gwasg Prifysgol Cymru
Published: 1951
Place of publication: Caerdydd
Language: wel
Number of pages: 336
Subjects: Welsh literature -- Texts
Other titles: White Book of Roderick
Work titles: Mabinogion