1. Quality of water from public-supply wells in principal aquifers of Illinois, 1984-87 Author/Creator: Voelker, David C., author Publication/Creation: Urbana, Illinois : U.S. Geological Survey, [1989] Resource Type: Book Access & Availability: Loading
2. Quality of water in the alluvial aquifer, American Bottoms, East St. Louis, Illinois Author/Creator: Voelker, David C., author Publication/Creation: Urbana, Ill. : U.S. Geological Survey, 1984 Resource Type: Book Access & Availability: Loading