@misc{indiciae974687e50cf2,
  title = {Memorandum report on test drilling at Norfolk, Virginia},
  author = {D.L. Brown},
  year = {1968},
  doi = {10.3133/ofr6825},
  url = {https://pubs.usgs.gov/publication/ofr6825},
  note = {Source identifier: ofr6825}
}