Skinner, B. F. (1969). Contingencies of reinforcement- a theoretical analysis. Appleton-century-crofts.
Stile di citazione ChicagoSkinner, B F. Contingencies of Reinforcement- a Theoretical Analysis. New York: Appleton-century-crofts, 1969.
Citazione MLASkinner, B F. Contingencies of Reinforcement- a Theoretical Analysis. Appleton-century-crofts, 1969.
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