BRADY, N.C. The Nature and properties of soils Nyle C.Brady and Ray R.Weil - 13th ed. - Delhi Pearson 2004 - xvi, 960p. ill.; plates (col.) ISBN: 81-7808-625-5 Subjects--Topical Terms: SOIL CONSERVATION Dewey Class. No.: GEO 631.4 / BNt04