TY  - RPRT
TI  - Hydrologic data for a study of pre-Illinoian glacial till in Linn County, Iowa, water year 1990
AU  - Phillip R. Bowman
PY  - 1991
DO  - 10.3133/ofr91459
UR  - https://pubs.usgs.gov/publication/ofr91459
ID  - ofr91459
ER  -