http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Digital surfaces and thicknesses of selected hydrogeologic units within the Ozark Plateaus aquifer system, northwestern Arkansas
1 online resource (iv, 25 pages) : illustrations, color maps.
GPO Cataloging Record Distribution Program (CRDP).
Includes bibliographical references (pages 24-25).
Scientific investigations report ; 2013-5208