Y glas a'r coch
By: gan Katie Olwen Pritchard.
Series: Darlish flynyddol Llyfrgell Penygroes -- 1980/81
Publisher: Cyngor Sir Gwynedd Gwasanaeth Llyfrgell
Published: 1981
Place of publication: Caernarfon (Llyfrgell Arfon/Dwyfor, 'Maesincla', Caernarfon, Gwynedd)
Language: wel
Number of pages: 42
Subjects: Gilfach Goch (Mid Glamorgan) -- Social life and customs.