@misc{indiciae4fd2fd1fd387,
  title = {Second report on a cooperative investigation of the composition of two silicate rocks},
  author = {Rollin Elbert Stevens and and others},
  year = {1960},
  doi = {10.3133/b1113},
  url = {https://pubs.usgs.gov/publication/b1113},
  note = {Source identifier: b1113}
}