@misc{indiciae0737d8824b01,
  title = {Safety requirements for drilling operations in a hydrogen sulfide environment},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1976},
  doi = {10.3133/25330},
  url = {https://pubs.usgs.gov/publication/25330},
  note = {Source identifier: 25330}
}