Columbia subject headings:
Authors, German--20th century--Correspondence.
Authors, Swiss--20th century--Correspondence.
Mann, Erika, 1905-1969--Correspondence.
Mann, Klaus, 1906-1949--Correspondence.
Schwarzenbach, Annemarie, 1908-1942--Correspondence.
Harvard subject headings:
Authors, German--20th century--Correspondence
Mann, Erika, 1905-1969--Correspondence.
Mann, Klaus, 1906-1949. Correspondence
Schwarzenbach, Annemarie, 1908-1942--Correspondence.
Princeton subject headings:
Authors, German--20th century--Correspondence.
Mann, Erika, 1905-1969--Correspondence.
Mann, Klaus, 1906-1949. Correspondence.
Schwarzenbach, Annemarie, 1908-1942--Correspondence.