@misc{indiciae135aa9b4c7ca,
  title = {Equipment for river measurements: Structures for cableways},
  author = {C.H. Pierce},
  year = {1947},
  doi = {10.3133/cir17},
  url = {https://pubs.usgs.gov/publication/cir17},
  note = {Source identifier: cir17}
}