4425
Agricultural practices and water quality
Ames
Iowa State University Press
1971, c1970
xxvii,415p.,illus.,Tables
Result of a conference,the role of agriculture in clean water,held at Iowa state University,Ames,Iowa,November 18-20,1969
Includes bibliographies
edited by Ted L.Willirich and Grorge E.Smith
Pollution ، Water
، Agriculture
TD
420
.
A33
TI
AU Willrich,ted L.,-ed
AU Smith, George Edward,1913-ed
CO Iowa.State University of Science and Technology Ames
CL
