Παραπομπή APA

Ray, W. J., & William J. Ray. Methods toward a science of behavior and experience. Australia,Belmont, CA: Thomson/Wadsworth.

Παραπομπή Chicago Style

Ray, William J., και William J. Ray. Methods Toward a Science of Behavior and Experience. Australia,Belmont, CA: Thomson/Wadsworth.

Παραπομπή MLA

Ray, William J., και William J. Ray. Methods Toward a Science of Behavior and Experience. Australia,Belmont, CA: Thomson/Wadsworth.

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