TY  - RPRT
TI  - Modifications of the U.S. Geological Survey modular, finite-difference, ground-water flow model to read and write geographic information system files
AU  - Leonard L. Orzol
AU  - Timothy S. McGrath
PY  - 1992
DO  - 10.3133/ofr9250
UR  - https://pubs.usgs.gov/publication/ofr9250
ID  - ofr9250
ER  -