@misc{indiciae052587e2b48b,
  title = {Hydrogeologic framework of Pennsylvanian and Late Mississippian rocks in the central lower peninsula of Michigan},
  author = {David B. Westjohn and Thomas L. Weaver},
  year = {1996},
  doi = {10.3133/wri944107},
  url = {https://pubs.usgs.gov/publication/wri944107},
  note = {Source identifier: wri944107}
}