TY  - RPRT
TI  - User's manual for the National Water Information System of the U.S. Geological Survey; Chapter 3, Automated data processing system
AU  - Scott D. Bartholoma
PY  - 1997
DO  - 10.3133/ofr97635
UR  - https://pubs.usgs.gov/publication/ofr97635
ID  - ofr97635
ER  -