Columbia subject headings:
Bulgaria. Narodno sŭbranie--Biography.
Legislators--Bulgaria--Biography.
Harvard subject headings:
Bulgaria--Officials and employees--Attitudes.
Bulgaria--Officials and employees--Registers.
Bulgaria. Narodno sŭbranie--Directories.
Bulgaria. Narodno sŭbranie--Registers.
Legislators--Bulgaria--Biography.
Princeton subject headings:
Bulgaria. Narodno sŭbranie--Biography--Dictionaries.
Legislators--Bulgaria--Biography--Dictionaries.