@misc{indiciae56288c43186a,
  title = {Geomorphic map of Worcester County, Maryland, interpreted from a LIDAR-based, digital elevation model},
  author = {Wayne L. Newell and Inga E. Clark},
  year = {2008},
  doi = {10.3133/ofr20081005},
  url = {https://pubs.usgs.gov/publication/ofr20081005},
  note = {Source identifier: ofr20081005}
}