Gozálvez Pérez, V., & Martín-Serrano Rodríguez, G. (2016). Spain’s population census in 1860: its methodological problems. The introduction of social variables to the censuses. Boletín De La Asociación De Geógrafos Españoles, (70). Recuperado a partir de https://bage.age-geografia.es/ojs/index.php/bage/article/view/2243