Columbia subject headings:
Chernihivsʹka oblastʹ (Ukraine)--Economic conditions--Sources.
Communism--Ukraine--Chernihivsʹka oblastʹ--History--Sources.
Harvard subject headings:
Chernihivsʹka oblastʹ (Ukraine)--Economic conditions--Sources.
Communism--Ukraine--Chernihivsʹka oblastʹ--History--Sources.
Princeton subject headings: