ALTMANN, H. Wenrich, W.W.(1970). <i>A Primer of Behavior Modification</i>. Canadian Journal of Counselling and Psychotherapy, [S. l.], v. 6, n. 1, 1972. Disponível em: https://cjc-rcc.ucalgary.ca/article/view/60824. Acesso em: 22 jul. 2024.