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. 1963 May:65:451-4.
doi: 10.1037/h0049174.

Preference for bar pressing over "freeloading" as a function of number of rewarded presses

G D JENSEN

Preference for bar pressing over "freeloading" as a function of number of rewarded presses

G D JENSEN. J Exp Psychol. 1963 May.
No abstract available

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