@misc{indiciaec0ef6856e16d,
  title = {Compositional characteristics of middle to upper Tertiary volcanic rocks of the Bolivian Altiplano},
  author = {E. A. Du Bray and S. D. Ludington and W. E. Brooks and B. M. Gamble and J.C. Ratte and D.H. Richter and Eduardo Soria-Escalante},
  year = {1995},
  doi = {10.3133/b2119},
  url = {https://pubs.usgs.gov/publication/b2119},
  note = {Source identifier: b2119}
}