Brady, Nyle C. The nature and properties of soils / Nyle C. Brady and Ray R. Weil. - 13th ed. - Upper Saddle River, N.J. : Prentice Hall, 2002. - xvi, 960 p. : ill. ; 26 cm. Includes index. ISBN: 8178086255 Subjects--Topical Terms: Soil science.Soils. Dewey Class. No.: 621.43 / BRN