TY  - RPRT
TI  - MODFLOW-2000, The U.S. Geological Survey modular ground-water model: User guide to modularization concepts and the ground-water flow process
AU  - Arlen W. Harbaugh
AU  - Edward R. Banta
AU  - Mary C. Hill
AU  - Michael G. McDonald
PY  - 2000
DO  - 10.3133/ofr200092
UR  - https://pubs.usgs.gov/publication/ofr200092
ID  - ofr200092
ER  -