Y Felin Fawr (Chwarel y Penrhyn)
Subtitle: ei hanes a'i rhamant
By: gan T. Theo Roberts ; cyflwyniad gan Emlyn Evans.
Publisher: Gwasg Gee
Published: 1999
Place of publication: Dinbych
Language: wel
Number of pages: 62
Subjects: Penrhyn Quarry.; Quarries and quarrying -- Wales -- Gwynedd.
Notes: Llyfryddiaeth = Bibliography: p. 62.