Columbia subject headings:
News agencies--Turkey--History.
Harvard subject headings:
Agence Havas.
Anadolu Ajansı.
Press--Turkey--History--19th century.
Press--Turkey--History--20th century
Reuters Limited.
Princeton subject headings:
Agence Havas.
Anadolu Ajansı.
Press--Turkey--History--19th century.
Press--Turkey--History--20th century.
Reuters Limited.