Não informado. (1963). Educational psychologist. American Psychological Association.
Chicago-viite (17. p.)Não informado. Educational Psychologist. Hillsdale, NJ: American Psychological Association, 1963.
MLA-viite (8. p.)Não informado. Educational Psychologist. American Psychological Association, 1963.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.