Philippine-American Workshop on Rural Development (1966 : International Rice Research Institute; University of the Philippines, College of Agriculture)
Mesa Redonda sobre Desarrollo Agroeconómico del Valle de Cochabamba (1963 : Universidad Mayor de San Simón) Universidad Mayor de San Simón (Cochabamba, Bolivia)
Joint Meeting of the XXVIII Congress of the International Association of Hydrogeologists and the Annual Meeting of the American Institute of Hydrology (1998 : Las Vegas, Nev.)
Manuel Mora y Araujo (compilador) ; contribuciones de Julio Berlinski, ... [and others] ; con comentarios de Mariluz Cortés ... [and others] ; prólogo de Alejandro Moya