11.8 Additional References
Readers who wish to learn more about groundwater geochemistry are encouraged to download and review The Geochemistry of Natural Waters↗ by Drever (1997), which is available at no charge from The Groundwater Project. An additional excellent resource is Study and Interpretation of the Chemical Characteristics of Natural Water by Hem (1985), this book is available as a free download from the US Geological Survey on the following website: https://pubs.usgs.gov/wsp/wsp2254/pdf/wsp2254a.pdf↗.