Experiments and innovations in education - United Nations Educational, Scientific and Cultural Organisation; Hochleitner, Ricardo Diez (Paris The Author, 1981)
v.1981.42 : Education and work in the spanish educational reform
v.1975.17 : Establishing an institution teaching by Correspondence
v.1974.18 : Youth participation in the development process: a case study in the Panama
v.1974. 7 : Basic secondary school in the country: an educational innovation in Cuba
v.1976.27: Integrated science in the junior secondary school in Sri Lanka
v.1976.26: Integrated approach to curriculum development in primary education in Sri Lanka