Management systems evaluation area, Iowa - Walnut Creek watershed
Contributors: Geological Survey (U.S.)
Series: Water fact sheet; Open-file report -- 92-167; U.S. Geological Survey open-file report -- 92-167
Publisher: U.S. Geological Survey, Dept. of the Interior
Published: 1992
Place of publication: [Washington]
Language: eng
Format: Microform
Subjects: Water quality -- United States; Agricultural chemicals -- Environmental aspects -- United States
Notes: Caption title

Distributed to depository libraries in microfiche

Shipping list no.: 93-0957-M

Includes bibliographical reference

Microfiche. [Denver, Colo. : U.S. Geological Survey, 1993] 1 microfiche : negative