@misc{indiciaeec6ea345d16c,
  title = {Beryllium content of volcanic rocks},
  author = {Daniel R. Shawe and Stanley Bernold},
  year = {1966},
  doi = {10.3133/b1214c},
  url = {https://pubs.usgs.gov/publication/b1214C},
  note = {Source identifier: b1214C}
}