1. Bear Spray Safety Program Author/Creator: Blome, Charles D. Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [2009] Resource Type: Book Access & Availability: Loading
2. Selected hydrologic data from the Cedar Rapids area, Linn County, Iowa, April 1996 through March 1999 Author/Creator: Boyd, Robert A., author Publication/Creation: Iowa City, Iowa : U.S. Department of the Interior, U.S. Geological Survey, 1999 Resource Type: Book Access & Availability: Loading
3. Hydrogeology and water quality of the Mississippi River alluvium near Muscatine, Iowa, June 1992 through June 1994 Author/Creator: Lucey, Keith J., author Publication/Creation: Iowa City, Iowa : U.S. Geological Survey, 1995 Resource Type: Book Access & Availability: Loading
4. Occurrence and distribution of nitrate and herbicides in the Iowa River alluvial aquifer, Iowa--May 1984 to November 1985 Author/Creator: Detroy, Mark G., author Publication/Creation: Iowa City, Iowa : U.S. Geological Survey, 1988 Resource Type: Book Access & Availability: Loading