Y Geiriadur mawr
Subtitle: the complete Welsh-English, English-Welsh dictionary
By: H. Meurig Evans and W.O. Thomas.
Contributors: Thomas, W. O.
Edition: 4th ed.
Publisher: Llandybie; Carms; Llyfrau'r, Gwasg Aberystwyth
Published: 1968
Place of publication: Aberystwyth
Language: eng
Number of pages: 492