@misc{indiciae8f9acfca39f8,
  title = {Progress report, investigations of fluvial sediments of the Niobrara River near Cody, Nebraska},
  author = {Eugene Frank Serr},
  year = {1950},
  doi = {10.3133/cir67},
  url = {https://pubs.usgs.gov/publication/cir67},
  note = {Source identifier: cir67}
}