http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Changes in chloride concentration in water from municipal wells that tap aquifers in rocks of Cambrian and Ordovician age in northeastern Illinois, 1915-84
v, 52 pages : illustrations, maps ; 28 cm.
Includes bibliographical references (pages 28-32).
Water-resources investigations report ; 90-4116