TY  - RPRT
TI  - Attributes for NHDPlus Catchments (Version 1.1) in the Conterminous United States: Artificial Drainage (1992) and Irrigation Types (1997)
AU  - Michael Wieczorek
AU  - Andrew E. LaMotte
PY  - 2010
DO  - 10.3133/dds49001
UR  - https://pubs.usgs.gov/publication/dds49001
ID  - dds49001
ER  -