Columbia subject headings:
Collectivization of agriculture--Russia (Federation)--History--Sources.
Cossacks--Foreign countries--Sources.
Cossacks--History--20th century--Sources.
Cossacks--Russia (Federation)--History--Sources.
Don Cossacks--History--Sources.
Soviet Union--Ethnic relations--Sources.
Harvard subject headings:
Collectivization of agriculture--Russia (Federation)--History--Sources.
Cossacks--Foreign countries--Sources.
Cossacks--History--20th century--Sources.
Cossacks--History--20th century.
Cossacks--Religious life.
Cossacks--Russia (Federation)--History--Sources.
Cossacks--Russia (Federation)--History.
Don Cossacks--History--Sources.
Don Cossacks--History.
Soviet Union--Ethnic relations--History--Sources.
Soviet Union--Ethnic relations.
Soviet Union--Religion.
Princeton subject headings: