Columbia subject headings:
Harvard subject headings:
Bloch, Ernst, 1885-1977--Correspondence.
Bloch, Karola--Correspondence.
Germany (East)--Social conditions.
Germany--Social conditions--20th century.
Philosophers--Germany (East)--Correspondence.
Philosophers--Germany--Correspondence
Teller, Johanna Hennig, 1934---Correspondence.
Teller, Jürgen--Correspondence.
Princeton subject headings:
Bloch, Ernst, 1885-1977--Correspondence.
Bloch, Karola--Correspondence.
Philosophers--Germany--Correspondence.
Teller, Johanna Hennig, 1934---Correspondence.
Teller, Jürgen, 1926-1999--Correspondence.