Columbia subject headings:
Bezsonov, I︠U︡. D. (I︠U︡riĭ Dmitrievich)
Harvard subject headings:
Bezsonov, I︠U︡. D. (I︠U︡riĭ Dmitrievich)
Internment camp escapes--Soviet Union.
Internment camps--Soviet Union
Political prisoners--Soviet Union--Biography
Prisons--Soviet Union
Russian S.F.S.R. Chrezvychaĭnai︠a︡ komissii︠a︡ po borʹbe s kontr-revoli︠u︡t︠s︡ieĭ i sabotazhem
Solovet︠s︡kiĭ lagerʹ osobogo naznachenii︠a︡
Soviet Union--History--Revolution, 1917-1921--Personal narratives
Soviet Union. Obʺedinennoe gosudarstvennoe politicheskoe upravlenie
Princeton subject headings:
Bezsonov, I︠U︡. D. (I︠U︡riĭ Dmitrievich)