Columbia subject headings:
Authors, English--20th century--Correspondence.
Lang-Sims, Lois--Correspondence.
Williams, Charles, 1886-1945--Correspondence.
Harvard subject headings:
Authors, English--20th century--Correspondence
Lang-Sims, Lois--Correspondence.
Williams, Charles, 1886-1945--Correspondence.
Princeton subject headings:
Authors, English--20th century--Correspondence.
Lang-Sims, Lois--Correspondence.
Williams, Charles, 1886-1945--Correspondence.