RPG8 - Regional Technical Statement for the North Wales and South Wales Regional Aggregate Working Parties– Second Review (RTS2) (September 2020)
RPG8 - Datganiadau Technegol Rhanbarthol ar gyfer Gweithgorau Agregau Rhanbarthol Gogledd Cymru a De Cymru - 2il Adolygiad (Medi 2020)