TY  - RPRT
TI  - Water resources data for Iowa, water year 1972
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1973
DO  - 10.3133/wdria721
UR  - https://pubs.usgs.gov/publication/wdrIA721
ID  - wdrIA721
ER  -