Columbia subject headings:
Orlov, Sergeĭ Sergeevich.
Poets, Russian--20th century--Biography.
Harvard subject headings:
Orlov, Sergeĭ
Orlov, Sergeĭ--Biography.
Poets, Russian--20th century--Biography
Princeton subject headings:
Orlov, Sergeĭ--Biography.
Poets, Russian--20th century--Biography.