Seminar on Computer Sciences in Secondary Education( (Sèvres, France), Organisation for Economic Co-operation and Development, & Centre for Educational Research and Innovation. (1971). Seminar on Computer Sciences in Secondary Education: Organised by O.E.C.D in collaboration with the 'Direction de le Coopération' of the French Ministry of Education at the Centre International d'Etudes Pédagogiques, Sèvres (France), March 9th/14th, 1970. H.M.S.O..

Seminar on Computer Sciences in Secondary Education( (Sèvres, France), Organisation for Economic Co-operation and Development, and Centre for Educational Research and Innovation. Seminar on Computer Sciences in Secondary Education: Organised by O.E.C.D in Collaboration with the 'Direction De Le Coopération' of the French Ministry of Education at the Centre International D'Etudes Pédagogiques, Sèvres (France), March 9th/14th, 1970. London,: H.M.S.O., 1971.

Seminar on Computer Sciences in Secondary Education( (Sèvres, France), et al. Seminar on Computer Sciences in Secondary Education: Organised by O.E.C.D in Collaboration with the 'Direction De Le Coopération' of the French Ministry of Education at the Centre International D'Etudes Pédagogiques, Sèvres (France), March 9th/14th, 1970. H.M.S.O., 1971.