Columbia subject headings:
Motion picture actors and actresses--Bulgaria--Biography.
Motion picture producers and directors--Bulgaria--Biography.
Motion pictures--Bulgaria--Catalogs.
Motion pictures--Bulgaria--History.
Motion pictures--Bulgaria--Plots, themes, etc.
Harvard subject headings:
Motion picture actors and actresses--Bulgaria--Biography.
Motion picture producers and directors--Bulgaria--Biography.
Motion pictures--Bulgaria--Catalogs.
Motion pictures--Bulgaria--History.
Motion pictures--Bulgaria--Plots, themes, etc.
Princeton subject headings:
Motion picture actors and actresses--Bulgaria--Biography.
Motion picture producers and directors--Bulgaria--Biography.
Motion pictures--Bulgaria--Catalogs.
Motion pictures--Bulgaria--History.
Motion pictures--Bulgaria--Plots, themes, etc.