Columbia subject headings:
National libraries--Spain--Bibliography--Catalogs.
National libraries--Spain--History--17th century.
Philip IV, King of Spain, 1605-1665--Library--Bibliography--Catalogs.
Philip IV, King of Spain, 1605-1665--Library--History.
Harvard subject headings:
National libraries--Spain--Bibliography--Catalogs.
National libraries--Spain--History--17th century.
Philip IV, King of Spain, 1605-1665--Library--Bibliography--Catalogs.
Philip IV, King of Spain, 1605-1665--Library--History.
Princeton subject headings:
Biblioteca Nacional (Spain)--Catalogs.
Catalogs.
Philip IV, King of Spain, 1605-1665--Library--Catalogs.