@misc{indiciaefeb945000358,
  title = {Map of the Second Berea sand in Gallia, Meigs, Athens, Morgan, and Muskingum Counties, Ohio},
  author = {James F. Pepper and D. F. Demarest and R.D. Holt and W. de Witt and H.H. Gray and H.H. Mead and C.W. Merrels and Violet Massarelli and Gail Everhart and P. Averitt},
  year = {1944},
  doi = {10.3133/om5},
  url = {https://pubs.usgs.gov/publication/om5},
  note = {Source identifier: om5}
}