Columbia subject headings:
Harvard subject headings:
Baltic States--History--German occupation, 1941-1944.
World War, 1939-1945--Collaborationists--Baltic States.
World War, 1939-1945--Collaborationists--Poland.
Princeton subject headings:
Collaborationists--Europe, Eastern--History--20th century.
Europe, Eastern--History--20th century.
Soviet Union--History--Revolution, 1917-1921--Collaborationists.
World War, 1939-1945--Collaborationists--Europe, Eastern.