Gentry, G. D., & Marr, M. J. (1982). Intractable properties of responding under a fixed-interval schedule.
Citação norma ChicagoGentry, G. David, and M. Jackson Marr. Intractable Properties of Responding Under a Fixed-interval Schedule. 1982.
MLA CitationGentry, G. David, and M. Jackson Marr. Intractable Properties of Responding Under a Fixed-interval Schedule. 1982.
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