@misc{indiciae959cefd3d29e,
  title = {Upper Cenozoic sediments of the lower Delaware Valley and the northern Delmarva Peninsula, New Jersey, Pennsylvania, Delaware, and Maryland},
  author = {James Patrick Owens and James Pierson Minard},
  year = {1979},
  doi = {10.3133/pp1067d},
  url = {https://pubs.usgs.gov/publication/pp1067D},
  note = {Source identifier: pp1067D}
}