@misc{indiciae02694b9b11d5,
  title = {The microgravimetric determination of acid-insoluble impurities in the complete analysis of small samples of acid-soluble minerals},
  author = {Robert Meyrowitz},
  year = {1973},
  url = {https://pubs.usgs.gov/publication/70160633},
  note = {Source identifier: 70160633}
}