@misc{indiciae7cbeb1cbc410,
  title = {The routine mineralogical analysis of clay-bearing samples},
  author = {Harry C. Starkey and Paul D. Blackmon and Phoebe L. Hauff},
  year = {1984},
  doi = {10.3133/b1563},
  url = {https://pubs.usgs.gov/publication/b1563},
  note = {Source identifier: b1563}
}