Columbia subject headings:
Bridges--England--Thames River--History--Sources.
London Bridge (London, England)--History--Sources.
Harvard subject headings:
London (England)--History--16th century--Sources.
London (England)--History--To 1500--Sources.
London Bridge (London, England)--History--Sources.
Princeton subject headings:
London (England)--History--16th century--Sources.
London (England)--History--To 1500--Sources.
London Bridge (London, England)--History--Sources.