Columbia subject headings:
Harvard subject headings:
Jewish socialists.
Jews--Russia--Politics and government.
Jews--Soviet Union--Politics and government.
Jews--United States--Politics and government.
Labor Zionism.
Russia--Ethnic relations.
Soviet Union--Ethnic relations.
United States--Ethnic relations.
Princeton subject headings:
Jewish socialists.
Jews--Soviet Union--Politics and government.
Jews--United States--Politics and government.
Labor Zionism.
Soviet Union--Ethnic relations.
United States--Ethnic relations.