@misc{indiciae1b3043259b22,
  title = {Beryllium content of American coals},
  author = {Taisia Maximovna Stadnichenko and Peter Zubovic and Nola B. Sheffey},
  year = {1961},
  doi = {10.3133/b1084k},
  url = {https://pubs.usgs.gov/publication/b1084K},
  note = {Source identifier: b1084K}
}