Não informado. (1971). British Journal of Educational Technology. National Council for Educational Technology.
Chicago-Zitierstil (17. Ausg.)Não informado. British Journal of Educational Technology. London: National Council for Educational Technology, 1971.
MLA-Zitierstil (8. Ausg.)Não informado. British Journal of Educational Technology. National Council for Educational Technology, 1971.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.