http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Time of travel and dispersion in a selected reach of Roberts Creek, Clayton County, Iowa
iv, 16 pages : illustrations, map ; 28 cm.
by D.W. Kolpin and S.J. Kalkhoff ; prepared in cooperation with the Iowa Department of Natural Resources, Geological Survey Bureau.
Includes bibliographical references (pages 15-16).
Water-resources investigations report ; 91-4145