Columbia subject headings:
Jews--History--20th century.
Jews--Political activity--History--20th century.
Labor Zionism--History--20th century.
Labor movement--Religious aspects--Judaism.
Socialism and Judaism--History--20th century.
Harvard subject headings:
Jewish labor unions--History--20th century.
Jewish socialists--History--20th century.
Jews--Employment--History--20th century.
Labor Zionism--History.
Labor movement--Religious aspects--Judaism--History--20th century.
Socialism and Judaism--History--20th century.
Working class Jews--History--20th century.
Princeton subject headings:
Jews--History--20th century.
Jews--Political activity--History--20th century.
Labor Zionism--History--20th century.
Labor movement--Religious aspects--Judaism.
Socialism and Judaism--History--20th century.