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--Caribbean region
vi, U32 pages : illustrations, maps ; 29 cm. + 2 maps.
by Fernando Gómez-Gómez and James E. Heisel.
Geological Survey professional paper ; 813-U