Columbia subject headings:
Harvard subject headings:
Pereira, Antonino Maria dos Reis--Correspondence.
Régio, José, 1901-1969--Correspondence.
Régio, José, 1901-1969--Family.
Princeton subject headings:
Authors, Portuguese--20th century--Correspondence.
Pereira, Antonino María dos Reis, 1905-1965--Correspondence.
Régio, José, 1901-1961--Correspondence.