Columbia subject headings:
Aleksandar Obrenović, King of Serbia, 1876-1903.
Milan Obrenović, King of Serbia, 1854-1901.
Serbia--History--1804-1918.
Harvard subject headings:
Aleksandar Obrenović, King of Serbia, 1876-1903.
Milan Obrenović, King of Serbia, 1854-1901.
Serbia--History--1804-1918.
Princeton subject headings: