@misc{indiciae4ce37ee89657,
  title = {The contact of the Fox Hills and Lance formations},
  author = {C. E. Dobbin and J.B. Reeside},
  year = {1930},
  doi = {10.3133/pp158b},
  url = {https://pubs.usgs.gov/publication/pp158B},
  note = {Source identifier: pp158B}
}