Columbia subject headings:
Erdoğan, Recep Tayyip.
Presidents--Turkey--21st century.
Turkey--Politics and government--21st century.
Harvard subject headings:
Erdoğan, Recep Tayyip
Presidents--Turkey--History--21st century.
Turkey--Politics and government--21st century.
Princeton subject headings:
Erdoğan, Recep Tayyip.
Presidents--Turkey--21st century.
Turkey--Politics and government--21st century.