Não informado. (1978). Journal of Special Education Technology. Association of Special Education Technology.
Citação do estilo Chicago (17ª ed.)Não informado. Journal of Special Education Technology. Logan, Utah: Association of Special Education Technology, 1978.
Citação MLA (8ª ed.)Não informado. Journal of Special Education Technology. Association of Special Education Technology, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.