Columbia subject headings:
Harvard subject headings:
Authors, Greek (Modern)--19th century--Correspondence.
Authors, Greek (Modern)--20th century--Correspondence.
Pallēs, Alexandros, 1851-1935--Correspondence.
Princeton subject headings:
Authors, Greek (Modern)--20th century--Correspondence.
Pallēs, Alexandros, 1851-1935--Correspondence.