Columbia subject headings:
Harvard subject headings:
Agras, Tellos, 1899-1944--Correspondence.
Michaēlidēs, Kōstas Ath.--Correspondence.
Princeton subject headings:
Agras, Tellos, 1899-1944--Correspondence.
Authors, Greek (Modern)--20th century--Correspondence.
Michaēlidēs, Kōstas Ath., 1898-1963--Correspondence.