Columbia subject headings:
Glavnoe upravlenie ispravitelʹno-trudovykh lagereĭ OGPU.
Internment camps--Soviet Union--Personal narratives.
Nazi concentration camps--Soviet Union--Personal narratives.
Political persecution--Soviet Union--Personal narratives.
Political prisoners--Soviet Union--Biography.
Political prisoners--Soviet Union--Personal narratives.
Harvard subject headings:
Concentration camps--Soviet Union--Personal narratives.
Glavnoe upravlenie ispravitelʹno-trudovykh lagereĭ OGPU
Political persecution--Soviet Union--Personal narratives.
Political prisoners--Soviet Union--Biography
Political prisoners--Soviet Union--Personal narratives
Princeton subject headings:
Glavnoe upravlenie ispravitelʹno-trudovykh lagereĭ OGPU.
Penal colonies--Soviet Union.
Political persecution--Soviet Union--History--Sources.
Political prisoners--Soviet Union--Biography.