Columbia subject headings:
Gildas, 516?-570? Liber querulus de excidio Britanniae.
Harvard subject headings:
Anglo-Saxons--History.
Gildas, 516?-570? Liber querulus de excidio Britanniae.
Great Britain--History--Anglo Saxon period, 449-1066.
Great Britain--History--Anglo-Saxon period, 449-1066--Historiography.
Princeton subject headings:
Gildas, 516?-570? Liber querulus de excidio Britanniae.