What I saw at Bethesda /
Jones, Charles Sheridan,1876-
Hughes, J. Elwyn.
Llandysul : Gomer,
2003.
Originally published: London : R. Brimley Johnson, 1903.
Penrhyn Quarry.
Strikes and lockouts
Labor disputes
Quarries and quarrying
Slate industry
Penrhyn Quarry Workers' Strike, Wales, 1900-1903.