@misc{indiciae9d96f1dfa9f3,
  title = {Chemical analyses of volcanic rocks from monogenetic and shield volcanoes near Crater Lake, Oregon},
  author = {P. E. Bruggman and C. R. Bacon and J. S. Mee and S. T. Pribble and D. F. Siems},
  year = {1989},
  doi = {10.3133/ofr89562},
  url = {https://pubs.usgs.gov/publication/ofr89562},
  note = {Source identifier: ofr89562}
}