@misc{indiciae718d484f1d9a,
  title = {Density, porosity, and magnetic properties of rock specimens from southwestern Arizona},
  author = {Douglas P. Klein and Gordon R. Johnson},
  year = {1983},
  doi = {10.3133/ofr83808},
  url = {https://pubs.usgs.gov/publication/ofr83808},
  note = {Source identifier: ofr83808}
}