http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Relation of water chemistry of the Edwards aquifer to hydrogeology and land use, San Antonio Region, Texas
1 online resource (vi, 100 pages) : illustrations, maps + 16 plates.
Includes bibliographical references (pages 98-100).
Water-resources investigations report ; 87-4116