Slates to Velinheli : the railways and tramways of Dinorwic Slate Quarries, Llanberis /
Carrington, Douglas C.(Douglas Corlett)
Rushworth, T. F.
Bala Lake Railway Society.
Llanuwchllyn : Bala Lake Railway Society,
1993.
Text and illustration on inside covers.
Previous ed: 1976
Bibliography: p60-61
Dinorwic Slate Quarry.
Railroads
Horse railroads