Columbia subject headings:
Kotlas (Russia)--Biography.
Kotlas (Russia)--History--20th century.
Kotlasskoe istoriko-prosvetitelʹskoe obshchestvennoe dvizhenie "Sovestʹ"--Archives.
Political persecution--Russia (Federation)--Kotlas.
Political persecution--Soviet Union--History--20th century.
Soviet Union--Politics and government.
Harvard subject headings:
Kotlas (Russia)--Biography.
Kotlas (Russia)--History--20th century.
Kotlasskoe istoriko-prosvetitelʹskoe obshchestvennoe dvizhenie "Sovestʹ"--Archives.
Political persecution--Russia (Federation)--Kotlas.
Political persecution--Soviet Union--History.
Soviet Union--Politics and government.
Princeton subject headings:
Kotlas (Russia)--Biography.
Kotlas (Russia)--History--20th century.
Kotlasskoe istoriko-prosvetitelʹskoe obshchestvennoe dvizhenie "Sovestʹ"--Archives.
Political persecution--Russia (Federation)--Kotlas.
Political persecution--Soviet Union--History--20th century.
Soviet Union--Politics and government.