Ray, W. J. (2003). Methods toward a science of behavior and experience (7th ed.). Thomson/Wadsworth.
Čikaški stil citiranja (17. izdanje)Ray, William J. Methods Toward a Science of Behavior and Experience. 7th ed. Australia, Belmont, CA: Thomson/Wadsworth, 2003.
MLA način citiranja (9. izdanje)Ray, William J. Methods Toward a Science of Behavior and Experience. 7th ed. Thomson/Wadsworth, 2003.
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