conventionDeclaration
detailLevel
http://ica-atom.org/doc/RS-2#5.4
León A., Gerardo
conventionDeclaration
Carta a Gerardo León A., 30/1/1928
Carta a Gerardo León A., 28/2/1928
Carta a Gerardo León A., 14/4/1928
Carta a Gerardo León A., 21/12/1928
Carta a Manuel F. Laos, 29/1/1929