Não informado. (1947). Journal of Comparative and Physiological Psychology. American Psychological Association.
Chicago-Zitierstil (17. Ausg.)Não informado. Journal of Comparative and Physiological Psychology. Arlington, Va: American Psychological Association, 1947.
MLA-Zitierstil (8. Ausg.)Não informado. Journal of Comparative and Physiological Psychology. American Psychological Association, 1947.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.