Ferreira, P.R. dos S. and Domeniconi, C. 2007. Meaning and definition of verbal behavior: the Skinnerian`s approach 10 years before Verbal Behavior. Brazilian Journal of Behavioral and Cognitive Therapy. 9, 2 (Jul. 2007), 361–373. DOI:https://doi.org/10.31505/rbtcc.v9i2.214.