Harley, John Brian. “El Mapa Com a Biografia: Reflexions Entorn Del Full ‘Newton Abbot, Devonshire CIX, SE’ Del Mapa a Sis Polzades De l’Ordnance Survey”. Treballs de la Societat Catalana de Geografia, no. 45 (February 11, 2005): 247–253. Accessed May 2, 2024. https://revistes.iec.cat/index.php/TSCG/article/view/9783.001.