Oliveras i Samitier, Josep. “Sortida d’estudi Al Baix Llobregat Nord: Martorell”. Treballs de la Societat Catalana de Geografia, no. 76 (December 17, 2013): 343–349. Accessed July 18, 2024. https://revistes.iec.cat/index.php/TSCG/article/view/81990.