http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Hydrology of area 1, Eastern Coal Province, Pennsylvania
vi, 89 pages : illustrations (some color), maps (some color) ; 28 cm.
Water resources investigations (Unnumbered)
Open-file report (Geological Survey (U.S.)) ; 82-223