@misc{indiciaeb357d805084d,
  title = {Preliminary structure contour map on the base of the Cretaceous Dakota sandstone in the San Juan Basin and vicinity, New Mexico, Arizona, Colorado, and Utah},
  author = {R.E. Thaden and R. S. Zech},
  year = {1984},
  doi = {10.3133/mf1673},
  url = {https://pubs.usgs.gov/publication/mf1673},
  note = {Source identifier: mf1673}
}