Columbia subject headings:
Bulgarian literature--1762-1900--History and criticism.
Bulgarian literature--20th century--History and criticism.
Literature--History and criticism.
Harvard subject headings:
Bulgarian literature--1762-1900--History and criticism.
Bulgarian literature--20th century--History and criticism.
Literature--History and criticism
Princeton subject headings:
Bulgarian literature--1762-1900--History and criticism.
Bulgarian literature--20th century--History and criticism.
Literature--History and criticism.