Columbia subject headings:
Cabral, Amílcar, 1924-1973--Correspondence.
Cabral, Amílcar, 1924-1973--Travel.
Postcards.
Harvard subject headings:
Cabral, Amílcar, 1924-1973--Correspondence.
Cabral, Amílcar, 1924-1973--Travel.
Postcards
Princeton subject headings:
Cabral, Amílcar, 1924-1973--Correspondence.
Cabral, Amílcar, 1924-1973--Travel.
Postcards.