(1979). History in the secondary schools of Wales: = Hanes yn ysgolion uwchradd Cymru. Her Majesty's Stationery Office.
Chicago-Zitierstil (17. Ausg.)History in the Secondary Schools of Wales: = Hanes Yn Ysgolion Uwchradd Cymru. Cardiff: Her Majesty's Stationery Office, 1979.
MLA-Zitierstil (9. Ausg.)History in the Secondary Schools of Wales: = Hanes Yn Ysgolion Uwchradd Cymru. Her Majesty's Stationery Office, 1979.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.