http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Occurrence and distribution of nitrate and herbicides in the Iowa River alluvial aquifer, Iowa--May 1984 to November 1985
vi, 93 pages : illustrations, maps ; 28 cm.
by Mark G. Detroy and Ronald L. Kuzniar ; prepared in cooperation with University of Iowa Hygienic Laboratory and Iowa Department of Natural Resources, Geological Survey Bureau.
Includes bibliographical references (page 32).
Water-resources investigations report ; 88-4117