David R. Larson

• Abortion
• Frames, bases, and group representations
• Guide to manuscripts collections & institutional records in Ohio
• Hydrogeology of the Green River Lowland and associated bedrock valleys in Northwestern Illinois
• Summary
• Geologic, geophysical, and hydrologic investigations for a supplemental municipal groundwater supply, Danville, Illinois
• Groundwater geology of DeWitt, Piatt, and northern Macon Counties, Illinois
• Training in the information sciences