Columbia subject headings:
Harvard subject headings:
Jews--Russia (Federation)--Siberia--Biography.
Leventhal Family.
Leventhal, Alexander Grigoryevich.
Leventhal, Ludmila.
Political prisoners--Russia (Federation)--Siberia--Biography
Siberia (Russia)--Biography.
Princeton subject headings:
Jews--Ukraine--Biography.
Leventhal, Ludmila.
Political prisoners--Russia (Federation)--Siberia--Biography.
Siberia (Russia)--Biography.