TY  - RPRT
TI  - Ground-water levels, flow, and quality in northwestern Elkhart County, Indiana, 1980-89
AU  - R.F. Duwelius
AU  - C.A. Silcox
PY  - 1991
DO  - 10.3133/wri914053
UR  - https://pubs.usgs.gov/publication/wri914053
ID  - wri914053
ER  -