Columbia subject headings:
Canada--History--Sources--Bibliography--Catalogs.
Scottish Record Office--Catalogs.
United States--History--Sources--Bibliography--Catalogs.
Harvard subject headings:
Archives--Scotland--Catalogs.
Canada--History--Sources--Bibliography--Catalogs.
Scottish Record Office--Catalogs.
United States--History--Bibliography--Catalogs.
United States--History--Sources--Bibliography.
Princeton subject headings:
Canada--History--Sources--Bibliography--Catalogs.
Scottish Record Office--Catalogs.
United States--History--Sources--Bibliography--Catalogs.