@misc{indiciaecd6950270225,
  title = {Building sandbars in Grand Canyon},
  author = {Paul E. Grams and John C. Schmidt and Scott Wright and David J. Topping and Theodore S. Melis and David M. Rubin},
  year = {2015},
  url = {https://pubs.usgs.gov/publication/70178002},
  note = {Source identifier: 70178002}
}