Columbia subject headings:
Cumbria (England)--History.
Great Britain--History--Anglo-Saxon period, 449-1066.
Solway Firth (England and Scotland)--History.
Strathclyde (Scotland)--History.
Harvard subject headings:
Cumbria (England)--History.
Great Britain--History--Anglo-Saxon period, 449-1066.
Solway Firth (England and Scotland)--History.
Strathclyde (Scotland)--History.
Princeton subject headings:
Cumbria (England)--History.
Great Britain--History--Anglo-Saxon period, 449-1066.
Solway Firth (England and Scotland)--History.
Strathclyde (Scotland)--History.