01054cam a2200313 4500 292715 BD-DhUL 20150113095646.0 710318t19711970iaua b 101 0 eng 70114798 0813817455 DLC DLC DLC BD-DhUL TD420 .A33 628.168 WIA Agricultural practices and water quality. Edited by Ted L. Willrich and George E. Smith. [1st ed.] Ames, Iowa State University Press [1971, c1970] xxvii, 415 p. illus. 24 cm. $7.95 "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. Willrich, Ted L., ed. Smith, George Edward, 1913- ed. Iowa State University. 7 cbc orignew 2 ncip 19 y-gencatlg ddc BK 30057 30057 0 0 ddc 0 628_168000000000000_WIA 0 NFIC 56998 DUSL DUSL GEN 1978-08-17 Purchased 0.00 628.168 WIA A159397 2015-01-13 2 2015-01-13 BK 0 0 ddc 0 628_168000000000000_WIA 0 NFIC 56999 DUSL DUSL GEN 1978-08-17 Purchased 0.00 628.168 WIA A59398 2015-01-13 3 2015-01-13 BK 0 0 ddc 0 628_168000000000000_WIA 0 NFIC 57001 DUSL DUSL GEN 1978-08-17 Purchased 0.00 628.168 WIA A159399 2015-01-13 1 2015-01-13 BK 0 0 ddc 0 628_168000000000000_WIA 0 NFIC 57004 DUSL DUSL GEN 1978-08-17 Purchased 0.00 628.168 WIA A159400 2015-01-13 5 2015-01-13 BK 0 0 ddc 0 628_168000000000000_WIA 0 NFIC 57006 DUSL DUSL GEN 1978-08-17 Purchased 0.00 628.168 WIA A159396 2015-01-13 4 2015-01-13 BK