Christmann, Federico E. (Nombres de personas)

His Vivencias y testimonios (de mis ultimos 80 años), 1982: t.p. (Federico E. Christmann) p. 1 etc. (four years old in 1902; physician and surgeon, author of books on medical topics)

Christmann, Nelly. El pequeño Federico ilustrado, 2000: cover p. 4 (Federico Enrique Bruno Christmann (1898-1986))