Columbia subject headings:
Authors, French--20th century--Correspondence.
Maritain, Jacques, 1882-1973--Correspondence.
Maritain, Raïssa--Correspondence.
Philosophers--France--Correspondence.
Sachs, Maurice, 1906-1945--Correspondence.
Harvard subject headings:
Authors, French--20th century--Correspondence
Maritain, Jacques, 1882-1973--Correspondence.
Maritain, Raïssa--Correspondence.
Philosophers--France--Correspondence
Sachs, Maurice, 1906-1945--Correspondence.
Princeton subject headings:
Intellectuals--France--20th century.
Maritain, Jacques, 1882-1973--Correspondence.
Maritain, Raïssa--Correspondence.
Novelists, French--20th century--Correspondence.
Personal correspondence.
Philosophers--France--Correspondence.
Sachs, Maurice, 1906-1945--Correspondence.