Columbia subject headings:
Harvard subject headings:
Germans--Russia--Congresses.
Germans--Soviet Union--Congresses.
Germany--Ethnic relations--Congresses.
Jews, Russian--History--Congresses.
North America--Ethnic relations--Congresses.
Russia--Ethnic relations--Congresses.
Russian Germans--History--Congresses.
Russian Germans--Relocation--Congresses.
Princeton subject headings:
Germans--Russia--Congresses.
Germans--Soviet Union--Congresses.
Germany--Ethnic relations--Congresses.
Jews, Russian--History--Congresses.
North America--Ethnic relations--Congresses.
Russia--Ethnic relations--Congresses.
Russian Germans--History--Congresses.
Russian Germans--Relocation--Congresses.