http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Ground water in southwestern Pennsylvania
viii, 406 pages : illustrations, tables, diagrams, folded map (in pocket) ; 23 cm.
by Arthur M. Piper, with analyses by Margaret D. Foster and C. S. Howard. Prepared in cooperation between the United States Geological Survey and the Pennsylvania Topographic and Geologic Survey.
At head of title: Pennsylvania Geological Survey, fourth series.
Bulletin (Pennsylvania. Bureau of Topographic and Geologic Survey) ; W1