Columbia subject headings:
Bombings--Turkey--Ankara.
IS (Organization)
Terrorism--Turkey--Ankara.
Turkey--Politics and government--21st century.
Harvard subject headings:
Bombings--Turkey--Ankara.
IS (Organization)
Terrorism--Turkey--Ankara.
Turkey--Politics and government--21st century.
Princeton subject headings:
Bombings--Turkey--Ankara.
IS (Organization)
Terrorism--Turkey--Ankara.
Turkey--Politics and government--21st century.