Agricultural practices and water quality.
By: Edited by Ted L. Willrich and George E. Smith.
Contributors: Willrich, Ted L., ed.; Smith, George Edward, 1913- ed.; Iowa State University.
Edition: [1st ed.]
Publisher: Iowa State University Press
Published: 1971
Place of publication: Ames
Language: eng
Number of pages: 415
Subjects: Water -- Pollution; Agriculture
Notes: Includes bibliographies.
"Result of a conference, The role of agriculture in clean water, held at Iowa State University, Ames, Iowa, November 18-20, 1969."