@misc{indiciae65fc72ec1085,
  title = {Volcanic stratigraphy and alteration mineralogy of drill cuttings from EWEB6 drill hole, Clackamas County, Oregon},
  author = {Terry E.C. Keith and James R. Boden},
  year = {1981},
  doi = {10.3133/ofr81168},
  url = {https://pubs.usgs.gov/publication/ofr81168},
  note = {Source identifier: ofr81168}
}