@misc{indiciaed42ecd8a0925,
  title = {Sedimentary features of the Blackhawk formation (Cretaceous) at Sunnyside, Carbon County, Utah},
  author = {John O. Maberry},
  year = {1968},
  doi = {10.3133/ofr68170},
  url = {https://pubs.usgs.gov/publication/ofr68170},
  note = {Source identifier: ofr68170}
}