International Society on Early Intervention. (1988). Infants and young children. [Aspen Publishers].
Chicago-referens (17:e uppl.)International Society on Early Intervention. Infants and Young Children. [Frederick, Md.]: [Aspen Publishers], 1988.
MLA-referens (9:e uppl.)International Society on Early Intervention. Infants and Young Children. [Aspen Publishers], 1988.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.