00259nam a22000977a 4500003000400000008004100004082001700045100001800062245002700080260005400107OSt230803b        |||||||| |||| 00| 0 eng d  a631.41bJ13S  aJackson, M.L.  aSoil Chemical Analysis  aNew DelhibPrentice hall of India Pvt. Ltd.c1973