Bruner, Carlos A., and Jorge E. Landaverde. “The Effects of Varyng the Spatial Localization of the Conditioned Stimulus in an autoshaping/Automaintenance Situations”. Mexican Journal of Behavior Analysis 11, no. 1 y 2 (June 21, 2011): 11–20. Accessed February 8, 2023. https://revistas.unam.mx/index.php/rmac/article/view/25761.