Rodríguez Terceño, José. “July 1 in the Somme (1916): Errors and Achievements of the British Army in the Worst Day of His Military History”. Historia y Comunicación Social 18 (November 19, 2013): 109–123. Accessed July 15, 2026. https://revistas.ucm.es/index.php/HICS/article/view/43417.