Delhi (India). National Institute of Education. Directorate of Extension Programmes for Secondary Education. (1962). Report of the working group on the courses of study in science education in the regional training colleges: Mussoorie, 19 to 24 June, 1962. National Council of Educational Research and Training, Directorate of Extension Programmes for Secondary Education.
Lua i Stíl Chicago (17ú heag.)Delhi (India). National Institute of Education. Directorate of Extension Programmes for Secondary Education. Report of the Working Group on the Courses of Study in Science Education in the Regional Training Colleges: Mussoorie, 19 to 24 June, 1962. New Delhi: National Council of Educational Research and Training, Directorate of Extension Programmes for Secondary Education, 1962.
Lua MLA (8ú heag.)Delhi (India). National Institute of Education. Directorate of Extension Programmes for Secondary Education. Report of the Working Group on the Courses of Study in Science Education in the Regional Training Colleges: Mussoorie, 19 to 24 June, 1962. National Council of Educational Research and Training, Directorate of Extension Programmes for Secondary Education, 1962.