http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Reconnaissance of headwater springs in the Gila River drainage basin, Arizona
1 online resource (iv, 54 pages, 4 pages of plates) : illustrations, maps.
Includes bibliographical references (pages 51-52) and index.
Contributions to the hydrology of the United States
Geological Survey water-supply paper ; 1619-H