Columbia subject headings:
Artists--Spain--Correspondence.
Crémer, Victoriano, 1907---Correspondence.
Vela Zanetti, José, 1913-1999--Correspondence.
Harvard subject headings:
Artists--Spain--Correspondence.
Crémer, Victoriano, 1907---Correspondence.
Vela Zanetti, José, 1913-1999--Correspondence.
Princeton subject headings:
Artists--Spain--Correspondence.
Crémer, Victoriano, 1907---Correspondence.
Vela Zanetti, José, 1913-1999--Correspondence.