Não informado. (2000). Journal of Early Intervention. Council for Exceptional Children, Division for Early Childhood.
Citação do estilo Chicago (17ª ed.)Não informado. Journal of Early Intervention. Reston, Va: Council for Exceptional Children, Division for Early Childhood, 2000.
Citação MLA (8ª ed.)Não informado. Journal of Early Intervention. Council for Exceptional Children, Division for Early Childhood, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.