@misc{indiciae23172add7bdb,
  title = {Geochemical relations and distribution of selected trace elements in ground water of the northern part of the western San Joaquin Valley, California},
  author = {N. M. Dubrovsky and J. M. Neil and M.C. Welker and K. D. Evenson},
  year = {1991},
  doi = {10.3133/ofr90108},
  url = {https://pubs.usgs.gov/publication/ofr90108},
  note = {Source identifier: ofr90108}
}