Madrid, 2 December 1975 and Berkeley, California, 8 January 1976 - Institutional correspondence A letter from José Mario Armero to Herschel B. Chip, with reply
Paris, 31 May 1937 - Internal institutional documents Summary of figures submitted as payment for propaganda
Paris, 31 May 1937 - Internal institutional documents Figures submitted by the Special Acquisitions Service for Propaganda
<em>Life</em>, New York, November 8, 1968, front cover - Article “As the bombing stops—THIS GIRL TRON”