@misc{indiciae943e308d4cc0,
  title = {The microscopic determination of the nonopaque minerals},
  author = {Esper S. Larsen and Harry Berman},
  year = {1934},
  doi = {10.3133/b848},
  url = {https://pubs.usgs.gov/publication/b848},
  note = {Source identifier: b848}
}