Columbia subject headings:
Bulgaria--Biography.
Bulgaria--History--1762-1878--Biography.
Bulgaria--History--1878-1944--Biography.
Intellectuals--Bulgaria--Biography.
Harvard subject headings:
Bulgaria--Biography--Dictionaries.
Bulgaria--Biography.
Bulgaria--History--1762-1878--Biography--Dictionaries.
Bulgaria--History--1762-1878--Biography.
Bulgaria--History--1878-1944--Biography.
Intellectuals--Bulgaria--Biography.
Princeton subject headings:
Bulgaria--Biography--Dictionaries.
Bulgaria--History--1762-1878--Biography--Dictionaries.