Columbia subject headings:
Great Britain--History--Sources--Bibliography.
Great Britain. Royal Commission on Historical Manuscripts--Bibliography.
Manuscripts--Great Britain--Catalogs.
Harvard subject headings:
Great Britain--History--Sources--Bibliography.
Great Britain. Royal Commission on Historical Manuscripts--Bibliography.
Manuscripts--Great Britain--Catalogs
Princeton subject headings:
Catalogs.
Great Britain--History--Sources--Bibliography.
Great Britain. Royal Commission on Historical Manuscripts--Bibliography.
Manuscripts--Great Britain--Catalogs.