@misc{indiciaea115435df224,
  title = {Chemical analyses of igneous rocks published from 1884 to 1913, inclusive, with a critical discussion of the character and use of analyses},
  author = {H.S. Washington},
  year = {1917},
  doi = {10.3133/pp99},
  url = {https://pubs.usgs.gov/publication/pp99},
  note = {Source identifier: pp99}
}