Y geiriadur mawr
Subtitle: the complete Welsh-English, English-Welsh dictionary
By: Meurig Evans, W. O. Thomas ; golygydd ymgynghorol (consulting editor) Stephen J. Williams.
Contributors: Thomas, W. O. joint author.; Williams, Stephen Joseph.
Edition: 8th ed.
Publisher: C. Davies
Published: 1978
Place of publication: Abertawe
Language: eng; wel
Number of pages: 367
Subjects: Welsh language -- Dictionaries -- English; English language -- Dictionaries -- Welsh