Columbia subject headings:
Pessoa, Fernando, 1888-1935--Correspondence.
Poets, Portuguese--20th century--Correspondence.
Queiroz, Ofélia--Correspondence.
Harvard subject headings:
Pessoa, Fernando, 1888-1935--Correspondence.
Poets, Portuguese--20th century--Correspondence.
Queiroz, Ofélia--Correspondence.
Princeton subject headings:
Pessoa, Fernando, 1888-1935--Correspondence.
Poets, Portuguese--20th century--Correspondence.
Queiroz, Ofélia--Correspondence.