Harlech Castlede Taylor, A. J., Arnold J. Taylor, Richard Avent, Cadw: Welsh Historic MonumentsMateriasGwynedd Harlech CastleHarlech CastleHarlech Castle (Harlech, Wales)CastlesTravel & holiday guidesWalesEdiciones (3)Harlech Castle (CADW Guidebooks) (1988)
