Prego, R., P. Ferro, and C. Trujillo. “Lead and Zinc Contamination of Surface Sediments in the Main Harbours of the Galician Rias”. Journal of Iberian Geology 34, no. 2 (October 23, 2008): 243–252. Accessed November 24, 2024. https://revistas.ucm.es/index.php/JIGE/article/view/JIGE0808220243A.