Discharge of herbicides from the Mississippi River basin to the Gulf of Mexico, 1991-97.
Contributors: Geological Survey (U.S.)
Series: USGS fact sheet -- FS-163-98.; Fact sheet (Geological Survey (U.S.)) -- FS-98-163.
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey
Published: 1999
Place of publication: [Reston, Va.?
Language: eng
Subjects: Water -- Pollution -- Mississippi River Watershed.; Herbicides -- Environmental aspects -- Mississippi River Watershed.
Other titles: USGS, science for a changing world.
Notes: Caption title.

Shipping list no.: 99-0232-P.

"April 1999"--P. [1].

Includes bibliographical references (p. [4]).