Y Geiriadur mawr
Subtitle: the complete Welsh-English, English-Welsh dictionary
By: H. Meurig Evans and W.O. Thomas.
Contributors: Thomas, W. O.
Edition: 5th ed.
Publisher: Gwasg Gomer; Llyfrau'r Dryw
Published: 1971
Place of publication: Llandysul; Llandybie
Language: eng
Number of pages: 492