Pal, Surendra. 1974. «The Variation Trend of Mn, Fe, Cu, Zn, Li, K, Ba, Sr, Al, Mg and Cr in a Box-Core from the Gulf of California». Geofísica Internacional 14 (3):245-51. https://doi.org/10.22201/igeof.00167169p.1974.14.3.999.