Luis Adolfo Siles Salinas was the Constitutional President of Bolivia for a period of five months between April and September 1969. Born in La Paz, Siles Salinas was the son of former president Hernando Siles Reyes (1926-1930) and half-brother of another famous Bolivian politician and two-time president, Hernán Siles Zuazo (1956-1960 and 1982-1985). Educated as a lawyer in his native country, he also obtained a doctorate in Spain. Wikipedia
The definitive Wikipedia entry for Luis Adolfo Siles Salinas. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Luis_Adolfo_Siles_Salinas