TY  - RPRT
TI  - Aggradation and degradation of alluvial sand deposits, 1965 to 1986, Colorado River, Grand Canyon National Park, Arizona
AU  - John C. Schmidt
AU  - Julia B. Graf
PY  - 1990
DO  - 10.3133/pp1493
UR  - https://pubs.usgs.gov/publication/pp1493
ID  - pp1493
ER  -