Columbia subject headings:
Archives--Turkey.
Başbakanlık Osmanlı Arşivi (Turkey)--Catalogs.
Turkey--History--Sources--Catalogs.
Harvard subject headings:
Archival materials--Turkey--Classification--History.
Archives--Turkey--Administration.
Başbakanlık Osmanlı Arşivi (Turkey)--Catalogs.
Başbakanlık Osmanlı Arşivi (Turkey)--History.
Manuscripts, Turkish--Catalogs.
Manuscripts, Turkish--Classification.
Turkey--History--Sources--Classification.
Princeton subject headings:
Archival materials--Turkey--Classification--History.
Archives--Turkey--Administration.
Archives--Turkey--Catalogs.
Başbakanlık Osmanlı Arşivi (Turkey)--Catalogs--Classification.
Başbakanlık Osmanlı Arşivi (Turkey)--History.
Catalogs.
Manuscripts, Turkish--Catalogs--Classification.
Turkey--History--Sources--Catalogs.