http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Ground-water resources in the vicinity of Cortland, Trumbull County, Ohio
1 online resource (iv, 20 pages) : maps.
by Gary J. Barton and Peter R. Wright ; prepared in cooperation with the city of Cortland, Ohio.
Includes bibliographical references (pages 19-20).
Water-resources investigations report ; 97-4130