00514cam a2200181 a 4500 0444873937 (U.S.) DLC 628 ELS 1989 A052 Or. Nitrogen management and ground water protection / Amsterdam ; New York : Elsevier, 1989. xv, 395 p. : ill. ; 25 cm. Nitrogen fertilizers Groundwater Water quality management. Nitrogen in agriculture. Follett, R. F. EK 14723 14723 0 0 0 628_000000000000000_ELS_1989_A052_OR 0 67223 LBA LBA A052 2017-10-25 628 ELS 1989 A052 Or. A19979 2017-10-25 2017-10-25 EK