Columbia subject headings:
Harvard subject headings:
Caliphate--History
Constitutional law--Turkey
Islam--Turkey--History
Kings and rulers (Islamic law)--Turkey--History.
Laicism--Turkey--History.
Secularism--Turkey--History.
Turkey--History--Ottoman Empire, 1288-1918.
Turkey--Politics and government--1918-1960.
Turkey. Büyük Millet Meclisi--Resolutions.
Princeton subject headings:
Caliphate--History.
Caliphate.
Islam--20th century.