TY  - RPRT
TI  - User's manual for the National Water Information System of the U.S. Geological Survey; Chapter 1, Ground-water site-inventory system
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1997
DO  - 10.3133/ofr97633
UR  - https://pubs.usgs.gov/publication/ofr97633
ID  - ofr97633
ER  -