1. Regional Aquifer-System Analysis Program of the U.S. Geological Survey, 1978-1992 Author/Creator: Sun, Ren Jen Publication/Creation: Washington : U.S. G.P.O. ; Denver, CO : For sale by U.S. Geological Survey, Map Distribution, 1994 Resource Type: Book Access & Availability: Loading
2. Regional Aquifer-System Analysis Program of the U.S. Geological Survey, 1978-1992 Author/Creator: Sun, Ren Jen, author Publication/Creation: [Reston, Virginia] : U.S. Department of the Interior, U.S. Geological Survey, 1994 Resource Type: Book Access & Availability: Loading
3. Regional Aquifer-System Analysis Program of the U.S. Geological Survey, summary of projects, 1978-84 Publication/Creation: Reston, VA (903 National Center, Reston 22092) ; [Washington? D.C.] : U.S. G.P.O., 1986 Resource Type: Book Access & Availability: Loading
4. Regional Aquifer-System Analysis Program of the U.S. Geological Survey, summary of projects, 1978-84 Publication/Creation: [Reston, Virginia] : United States Department of the Interior, U.S. Geological Survey, 1986 Resource Type: Book Access & Availability: Loading