1. Geochemistry, Groundwater and Pollution;Appelo,2005
2. Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System);Astm D 2487,2006
3. Il clima;Barazzuoli,1993
4. Mining and its Impact on the Environment;Bell,2006
5. Geologia, idrogeologia, idrogeochimica e geochimica dell’area di Montioni (Comune di Follonica);Bianchi,2015