TY  - RPRT
TI  - Excel Spreadsheet Tools for Analyzing Groundwater Level Records and Displaying Information in ArcMap
AU  - Fred D. Tillman
PY  - 2009
DO  - 10.3133/tm4f1
UR  - https://pubs.usgs.gov/publication/tm4F1
ID  - tm4F1
ER  -