@misc{indiciae7d082c777da1,
  title = {Principal facts for gravity stations in the vicinity of Mount St. Helens, Skamania County, Washington},
  author = {G. A. Abrams},
  year = {1987},
  doi = {10.3133/ofr87271},
  url = {https://pubs.usgs.gov/publication/ofr87271},
  note = {Source identifier: ofr87271}
}