@misc{indiciaee23d4df4c213,
  title = {Incidental problems in gas-producer tests},
  author = {Robert Heywood Fernald and C. D. Smith and J.K. Clement and H.A. Grine},
  year = {1909},
  doi = {10.3133/b393},
  url = {https://pubs.usgs.gov/publication/b393},
  note = {Source identifier: b393}
}