Willrich, Ted L. ed. Smith, George Edward 1913- ed. Iowa State University text bibliography conference publication iau Ames Iowa State University Press [1971, c1970] 1971 1970 [1st ed.] monographic eng

print

xxvii, 415 p. illus. 24 cm. Edited by Ted L. Willrich and George E. Smith. "Result of a conference, The role of agriculture in clean water, held at Iowa State University, Ames, Iowa, November 18-20, 1969." Includes bibliographies. Water Pollution Agriculture TD420 .A33 628.168 WIA 0813817455 70114798 DLC 710318 20150113095646.0 292715