Brady, Nyle C. The nature and properties of soils / by Nyle C. Brady, Ray R. Weil. - 12th ed. - Upper Saddle River, N.J. : Prentice Hall, c1999. - 800 p. : ill. ; 24 cm. ISBN: 0138524440 Source: B-24275 Nat. Bib. No.: GB 98-X7501 Subjects--Topical Terms: Soils.Soil science. LC Class. No.: S 591. B93 / .B93