@misc{indiciaec3c9bb16dda5,
  title = {Acetic acid leachability of lead from clinoptilolite-rich rocks that extracted heavy metals from polluted drainage water in Colorado},
  author = {George A. Desborough},
  year = {1995},
  doi = {10.3133/ofr9549},
  url = {https://pubs.usgs.gov/publication/ofr9549},
  note = {Source identifier: ofr9549}
}