http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Occurrence and transport of agricultural chemicals in the Mississippi River basin, July through August 1993
v, 22 pages : illustrations, maps ; 28 cm.
by Donald A. Goolsby, William A. Battaglin, and E. Michael Thurman.
"U.S. Department of the Interior, U.S. Geological Survey"--Title page verso.
Includes bibliographical references (pages 21-22).
U.S. Geological Survey circular ; 1120-C
Floods in the upper Mississippi River basin, 1993