Madrid, 8 July 1972 - Institutional correspondence A letter from Xavier de Salas to Florentino Pérez Embid
<em>The Museum of Modern Art at Mid Century, At Home and Abroad; Studies in Modern Art 4</em>, New York: MoMA, 1994, 38–55 - Article “Revisiting the Revisionists: the Modern, its Critics, and the Cold War”