TY  - RPRT
TI  - Selected reports that include computer programs produced by the US Geological Survey for simulation of ground-water flow and quality
AU  - C.A. Appel
AU  - T. E. Reilly
PY  - 1988
DO  - 10.3133/wri874271
UR  - https://pubs.usgs.gov/publication/wri874271
ID  - wri874271
ER  -