@misc{indiciae3ef04a514d10,
  title = {Status of Regional Gravity Project, Kingdom of Saudi Arabia, as of 1 January, 1979},
  author = {M. E. Gettings},
  year = {1981},
  doi = {10.3133/ofr81165},
  url = {https://pubs.usgs.gov/publication/ofr81165},
  note = {Source identifier: ofr81165}
}