Columbia subject headings:
Harvard subject headings:
Le Corbusier, 1887-1965--Correspondence.
Sert, José Luis, 1902-1983--Correspondence.
Princeton subject headings:
Architects--France--Correspondence.
Architects--Spain--Correspondence.
Le Corbusier, 1887-1965--Correspondence.
Sert, José Luis, 1902-1983--Correspondence.