@misc{indiciae087852da0463,
  title = {Description of a special logging truck built for the U.S. Geological Survey for borehole gravity surveys},
  author = {S. L. Robbins},
  year = {1979},
  doi = {10.3133/ofr791511},
  url = {https://pubs.usgs.gov/publication/ofr791511},
  note = {Source identifier: ofr791511}
}