Não informado. (1966). International Review of Research in Mental Retardation. Academic Press.
Chicago-viite (17. p.)Não informado. International Review of Research in Mental Retardation. New York: Academic Press, 1966.
MLA-viite (8. p.)Não informado. International Review of Research in Mental Retardation. Academic Press, 1966.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.