Hale, J. M., & Shimp, C. P. (1975). Molecular contingencies: Reinforcement probability.
Čikaški stil citiranjaHale, John M., i Charles P. Shimp. Molecular Contingencies: Reinforcement Probability. 1975.
MLA način citiranjaHale, John M., i Charles P. Shimp. Molecular Contingencies: Reinforcement Probability. 1975.
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