Columbia subject headings:
Bloch, Jean-Richard, 1884-1947--Childhood and youth.
Bloch, Jean-Richard, 1884-1947--Correspondence.
Bloch, Jean-Richard, 1884-1947--Family.
Harvard subject headings:
Bloch, Jean Richard, 1884-1947--Childhood and youth.
Bloch, Jean Richard, 1884-1947--Correspondence.
Bloch, Jean Richard, 1884-1947--Family.
Princeton subject headings:
Bloch, Jean-Richard, 1884-1947--Childhood and youth.
Bloch, Jean-Richard, 1884-1947--Correspondence.
Bloch, Jean-Richard, 1884-1947--Family.