na INLIS000000000004761 Ind 0010-1118004761 Acid sulphate soils in the humid tropics: executive summary AGENCY FOR AGRICULTURAL RESEARCH AND DEVELOPMENT Agency for Agricultural Research and Development Jakarta AARD 1992 26 p.: ill.; 25 cm + app. 26 p.: ill.; 25 cm + app. Bibl. p.23 631.415.2 ACID SOILS TROPICS 2737/DOK/96