http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Summary appraisals of the Nation's ground-water resources, Texas-Gulf region
iii, 29 pages : illustrations (3 folded in pocket) ; 29 cm.
A summary of the distribution, availability and quality of ground water and its importance in the regional water supply.
Geological Survey professional paper ; 813-F