The Mexican political system in 1970 according to a report by the Spanish diplomat Juan Castrillo. REVISTA ELECTRONICA IBEROAMERICANA, [S. l.], v. 18, n. 2, p. 264–286, 2024. DOI: 10.20318/reib.2024.8829. Disponível em: https://e-revistas.uc3m.es/index.php/REIB/article/view/8829. Acesso em: 5 dec. 2025.