@misc{indiciaebc7e0db6d1f3,
  title = {Operation and maintenance of US BM-54 bed material sampler},
  author = {J. V. Skinner and V.C. Colby},
  year = {1964},
  url = {https://pubs.usgs.gov/publication/70175880},
  note = {Source identifier: 70175880}
}