Não informado. (1971). British Journal of Educational Technology. National Council for Educational Technology.
Citação do estilo Chicago (17ª ed.)Não informado. British Journal of Educational Technology. London: National Council for Educational Technology, 1971.
Citação MLA (8ª ed.)Não informado. British Journal of Educational Technology. National Council for Educational Technology, 1971.
警告：這些引文格式不一定是100％准確.