@misc{indiciaea002ebb46b23,
  title = {Recent development of the producer-gas power plant in the United States},
  author = {Robert Heywood Fernald},
  year = {1909},
  doi = {10.3133/b416},
  url = {https://pubs.usgs.gov/publication/b416},
  note = {Source identifier: b416}
}