WASET
    J. Ramírez-Ortiz and  J. Núñez Monreal,  Study of Soil Contaminated with Arsenic, Cadmium and Lead in Ancient Tailings in Zacatecas, México.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2009, vol. 27(3). 95 - 99
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/12338.