Ledesma Alonso, Ricardo. «Practical and Historical Past. The 20´s Crisis and Soviet Russia’s History from E.H. Carr. A Compared Historiography Essay». HistoriAgenda 4, no. 38 (abril 27, 2019): 15–24. Accedido mayo 10, 2024. https://revistas.unam.mx/index.php/historiagenda/article/view/69470.