@misc{indiciae5512c4005288,
  title = {Hualapai Limestone Member of the Muddy Creek Formation: The youngest deposit predating the Grand Canyon, southeastern Nevada and northwestern Arizona},
  author = {Will N. Blair and Augustus K. Armstrong},
  year = {1979},
  doi = {10.3133/pp1111},
  url = {https://pubs.usgs.gov/publication/pp1111},
  note = {Source identifier: pp1111}
}