Columbia subject headings:
Authors, American--20th century--Correspondence.
Cleator, P. E. (Philip Ellaby), 1908-1994.
Mencken, H. L. (Henry Louis), 1880-1956--Correspondence.
Harvard subject headings:
Authors, American--20th century--Correspondence
Cleator, P. E. (Philip Ellaby), 1908-1994
Mencken, H. L. (Henry Louis), 1880-1956--Correspondence.
Princeton subject headings:
Authors, American--20th century--Correspondence.
Cleator, P. E. (Philip Ellaby), 1908-
Mencken, H. L. (Henry Louis), 1880-1956--Correspondence.