@misc{indiciaebea81d1bc98f,
  title = {Principal facts for gravity stations in Hunterdon, Mercer, Monmouth, and Somerset counties, central New Jersey},
  author = {K. R. Bond and D. L. Daniels},
  year = {1986},
  doi = {10.3133/ofr86294},
  url = {https://pubs.usgs.gov/publication/ofr86294},
  note = {Source identifier: ofr86294}
}