Bernar Mainar, Rafael. 2021. “A Review of the Legal Work of Joaquin Costa in the Dawn of the 21st Century: The Trace of Costumary Law in the Aragon Regional Law Code”. Revista De Derecho aragonés, no. 26-27 (2020-2021) (December): 13-48. https://doi.org/10.26754/ojs_deara/deara.12882.