@misc{indiciae638df24b3033,
  title = {Inflatable straddle packers and associated equipment for hydraulic fracturing and hydrologic testing},
  author = {Eugene Shuter and Robert R. Pemberton},
  year = {1978},
  doi = {10.3133/wri7855},
  url = {https://pubs.usgs.gov/publication/wri7855},
  note = {Source identifier: wri7855}
}