TY  - RPRT
TI  - Geology and ground-water resources of Clayton County, Iowa
AU  - W. L. Steinhilber
AU  - O. J. Van Eck
AU  - A.J. Feulner
PY  - 1961
UR  - https://pubs.usgs.gov/publication/70174095
ID  - 70174095
ER  -