Columbia subject headings:
Bulgaria--Ethnic relations.
Bulgaria--History--1878-1944.
Bulgaria--History--1944-
Civil rights--Bulgaria.
Turks--Bulgaria--History.
Harvard subject headings:
Bulgaria--Ethnic relations.
Minorities--Bulgaria.
Turks--Bulgaria--History
Turks--Education--Bulgaria.
Princeton subject headings:
Bulgaria--Ethnic relations.
Bulgaria--History--1878-1944.
Bulgaria--History--1944-
Civil rights--Bulgaria.
Turks--Bulgaria--History.