VELÁSQUEZ CALDERÓN, Óscar E. UN: 70 years of actions in favor of humanity. Entorno, [S. l.], n. 63, p. 7–9, 2017. DOI: 10.5377/entorno.v0i63.6070. Disponível em: https://camjol.info/index.php/entorno/article/view/6070. Acesso em: 16 aug. 2024.