Columbia subject headings:
Bulgarian poetry--20th century--History and criticism.
Petrov, Valeri, 1920-2014--Criticism and interpretation.
Poets, Bulgarian--20th century.
Harvard subject headings:
Bulgarian poetry--20th century--History and criticism.
Petrov, Valeri, 1920-2014--Criticism and interpretation.
Poets, Bulgarian--20th century.
Princeton subject headings:
Bulgarian poetry--20th century--History and criticism.
Petrov, Valeri, 1920-2014--Criticism and interpretation.
Poets, Bulgarian--20th century.