TY - RPRT TI - Research Furthers Conservation of Grand Canyon Sandbars AU - Theodore S. Melis AU - David J. Topping AU - David M. Rubin AU - Scott Wright PY - 2007 DO - 10.3133/fs20073020 UR - https://pubs.usgs.gov/publication/fs20073020 ID - fs20073020 ER -