Não informado. (1968). Journal of Comparative and Physiological Psychology. American Psychological Association.
Čikaški stil citiranja (17. izdanje)Não informado. Journal of Comparative and Physiological Psychology. Baltimore, Md: American Psychological Association, 1968.
MLA način citiranja (8. izdanje)Não informado. Journal of Comparative and Physiological Psychology. American Psychological Association, 1968.
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