Columbia subject headings:
Harvard subject headings:
Ivnev, Ri͡urik, 1891-1981--Diaries.
Ivnev, Ri͡urik, 1891-1981--Friends and associates.
Ivnev, Ri͡urik, 1891-1981.
Ivnev, Ri︠u︡rik, 1891-1981--Correspondence.
Poets, Russian--20th century--Biography
Poets, Russian--20th century--Correspondence
Poets, Russian--20th century--Diaries.
Princeton subject headings:
Diaries.
Ivnev, Ri︠u︡rik, 1891-1981--Correspondence.
Ivnev, Ri︠u︡rik, 1891-1981--Diaries.
Ivnev, Ri︠u︡rik, 1891-1981--Friends and associates.
Ivnev, Ri︠u︡rik, 1891-1981.
Poets, Russian--20th century--Biography.