@misc{indiciae614ffea8dab2,
  title = {Abrasive materials},
  author = {C.E. Siebenthal and R.D. Mesler},
  year = {1908},
  doi = {10.3133/b340j},
  url = {https://pubs.usgs.gov/publication/b340J},
  note = {Source identifier: b340J}
}