Não informado. (1966). International Review of Research in Mental Retardation. Academic Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. International Review of Research in Mental Retardation. New York: Academic Press, 1966.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. International Review of Research in Mental Retardation. Academic Press, 1966.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.