Universidad Pedagógica Nacional Unidad Ajusco Catálogo de la Biblioteca "Gregorio Torres Quintero"
by Meeting of Experts on Education for International Understanding, Cooperation and Peace and Education Relative to HumanRights and Fundamental Liberties in Latin America and the Caribbean ( 1981 : San Jose ) | Oficina Regional de Educación de la UNESCO para América Latina y el Caribe.
by Meeting of Experts on Education for International Understang Cooperation and Peace and Education Relative to Human Rights and Fundamental Liberties in Latin America and the Caribbean ( 1981 : San José ) | Oficina Regional de Educación de la UNESCO para América Latina y el Caribe.