Eisteddfod Caergybi, 1912
Subtitle: ei Hanes a'i chyfansoddiadau, dan olygiaeth S.J. Evans
Publisher: W.O. Jones
Published: 1913
Place of publication: Llangefni
Language: wel
Notes: At head of title: Cyfrol vi. Cymdeithas Eisteddfod Gadeiriol Mon.