1. 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
2. Overview of surface-water quality in Ohio's coal regions Author/Creator: Westover, Susan, author Publication/Creation: Columbus, Ohio : U.S. Geological Survey, 1987 Resource Type: Book Access & Availability: Loading
3. Overview of water resources in Owens Valley, California Author/Creator: Rogers, Linda S., author Publication/Creation: Sacramento, California : U.S. Geological Survey, 1987 Resource Type: Book Access & Availability: Loading