GUERIN, G. Review of Planifier pour Planifier. Canadian Journal of Higher Education, [S. l.], v. 5, n. 3, p. 76–77, 1975. Disponível em: https://www.cjhe.test.sfulib7.publicknowledgeproject.org/index.php/cjhe/article/view/182647. Acesso em: 2 may. 2026.