@misc{indiciae20dc25d018b7,
  title = {The Hobart Butte high-alumina clay deposit, Lane County, Oregon},
  author = {Victor T. Allen and John S. Loofbourow and Robert L. Nichols},
  year = {1951},
  doi = {10.3133/cir143},
  url = {https://pubs.usgs.gov/publication/cir143},
  note = {Source identifier: cir143}
}