Columbia subject headings:
Germans--Ukraine--History--Sources.
Minorities--Government policy--Soviet Union--Sources.
Soviet Union--Politics and government--1917-1936--Sources.
Ukraine--Ethnic relations--Sources.
Harvard subject headings:
Germans--Ukraine--History--20th century.
Princeton subject headings:
Germans--Ukraine--History--20th century--Sources.
Ukraine--Ethnic relations--Sources.
Ukraine--Politics and government--20th century--Sources.