na INLIS000000000006376 Ind 0010-1118006376 Soil samplee analysis data base user manual and technical WOOD-SICKRA, U. U. Wood-Sickra Bogor Centre for Soil Agroclimate Research 1992 iii, 17 p.: ill.; 30 cm.-- iii, 17 p.: ill.; 30 cm.-- 681.3.01 DATA PROCESSING DATA COLLECTION 301/D/98