LCNA 1977/1986
Measurement and analysis of socio-economic development... / United Nations research
institute for social development ; Donald McGranahan, Eduardo Pizarro, Claude Richard,
1985
https://en.wikipedia.org/wiki/Eduardo_Pizarro_Leong%C3%B3mez (2017-06-13)
Information trouvée : sociologue et analyste politique.- ambassadeur de la Colombie au Pays-Bas