@misc{indiciae7caf78e9efe7,
  title = {Measurements of velocity and discharge, Grand Canyon, Arizona, May 1994},
  author = {Kevin A. Oberg and Gregory G. Fisk},
  year = {1995},
  url = {https://pubs.usgs.gov/publication/70018772},
  note = {Source identifier: 70018772}
}