TY  - RPRT
TI  - Use of slide rule in solving ground-water problems involving application of the nonequilibrium formula
AU  - C.V. Theis
AU  - R. H. Brown
PY  - 1951
DO  - 10.3133/ofr51152
UR  - https://pubs.usgs.gov/publication/ofr51152
ID  - ofr51152
ER  -