TY  - RPRT
TI  - Ground-water levels in Arkansas, spring 1987
AU  - D.A. Freiwald
AU  - Maria Plafcan
PY  - 1987
DO  - 10.3133/ofr87459
UR  - https://pubs.usgs.gov/publication/ofr87459
ID  - ofr87459
ER  -