Brady, Nyle C. The nature and properties of soils / Nyle C Brady and Ray R. Weil. - 13th ed / . - Delhi : Pearson Education , 2007. - xvi,937p. : ills,figs ; 23cm . Include index ISBN: Rs. 365.00 (Pb) Subjects--Index Terms: SOIL SCIENCE Dewey Class. No.: 631.4 / BRA/N