TY  - RPRT
TI  - Changes in Riparian Vegetation in the Southwestern United States: Repeat Photography at Gaging Stations in Arizona
AU  - Robert H. Webb
AU  - Diane E. Boyer
PY  - 2001
DO  - 10.3133/ofr01323
UR  - https://pubs.usgs.gov/publication/ofr01323
ID  - ofr01323
ER  -