http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Geology and ground-water resources of Washington, D.C., and vicinity
With a section on chemical quality of the water by D.E. Weaver and Leonard Siu
1 online resource (vi, 97 pages, 2 pages of plates) : illustrations, maps.
Includes bibliographical references (pages 88-94).
Geological Survey water-supply paper ; 1776