Alarcón Alarcón, Amado, and Josiah Heyman. “Socioeconomic Constraints to the Spread of Spanish in the United States”. Revista Española de Investigaciones Sociológicas, no. 139 (February 14, 2024): 3–20. Accessed November 11, 2026. https://reis.cis.es/index.php/reis/article/view/553.