@misc{indiciaee46f0018f798,
  title = {Understanding our fragile environment; Lessons from geochemical studies},
  author = {Larry P. Gough and Sigrid Asher-Bolinder and Laurie S. Balistrieri and George N. Breit and Thomas J. Casadevall and James G. Crock and Kimberley I. Cunningham and Joseph S. Duval and James A. Erdman and Barbara M. Erickson and Walter H. Ficklin and Larry L. Jackson and Rama K. Kotra and Joel S. Leventhal and James M. McNeal and William R. Miller and James K. Otton and Douglass E. Owen and Geoffrey S. Plumlee and G. Michael Reimer and Ronald C. Severson and Kathleen S. Smith and Ronald R. Tidball and Robert A. Zielinski},
  year = {1993},
  doi = {10.3133/cir1105},
  url = {https://pubs.usgs.gov/publication/cir1105},
  note = {Source identifier: cir1105}
}