@misc{indiciaea95259c6f756,
  title = {Delaware River: Evidence for its former extension to Wilmington Submarine Canyon},
  author = {D.C. Twichell and H.J. Knebel and D. W. Folger},
  year = {1977},
  doi = {10.1126/science.195.4277.483},
  url = {https://pubs.usgs.gov/publication/70009955},
  note = {Source identifier: 70009955}
}