La Préparation des manuels scolaires dans les pays en voie de développement: guide à l'usage des auteurs

by Loveridge, A.J., Cornelsen, F., Lewis, L.J., Terekhov, I.M.

La Preparación de manuales escolares en los países en vías de desarrollo: guía para uso de los autores

by Loveridge, A.J., Cornelsen, F., Lewis, L.J., Terekhov, I.M.

Preparing textbook manuscripts: a guide for authors in developing countries

by Loveridge, A.J., Cornelsen, F., Lewis, L.J., Terekhov, I.M.

Report of UNESCO educational planning mission for Tanganyika - (mission) June to October 1962

by Lewis, L.J., Coppen, Helen, Loveridge, A.J., Pratt, Simon, Tretiakov, I.P., Wal, W. van der, Cameron, John, Mhaiki, I.J.