Não informado. (1968). Journal of Applied Behavior Analysis. Society for the Experimental Analysis of Behavior.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Journal of Applied Behavior Analysis. Lawrence, Kan: Society for the Experimental Analysis of Behavior, 1968.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Journal of Applied Behavior Analysis. Society for the Experimental Analysis of Behavior, 1968.
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