@misc{indiciae51a614723478,
  title = {National Geographic Interview -- Pit Manufacturing},
  author = {Lunn, Maureen Elizabeth and Roark, Kevin Neil},
  year = {2020},
  doi = {10.2172/1680006},
  url = {https://www.osti.gov/biblio/1680006},
  note = {Source identifier: 1680006}
}