Morgan, R. P. C. Soil erosion and conservation / R.P.C. Morgan ; edited by D.A. Da vidson. - Essex, England : New York, NY : Longman Scientific & Technical ; Wiley, 1986. - ix, 298 p. : ill. ; 25 cm. Rev.ed. Includes bibliographical references [p.256-295) and index. ISBN: 0470206713 (Wiley : pbk.) 0582030749 Subjects--Topical Terms: Soil erosion. Soil conservation. Dewey Class. No.: 631.45 MOR