na INLIS000000000011402 Ind 0010-1118011402 Soil organic matter dynamics and sustainability of tropical agriculture : proceedings of an International Symposium held at Leuven, Belgium, 4-6 November 1991 INTERNATIONAL SYMPOSIUM ON SOIL ORGANIC MATTER DYNAMICS AND ...(1991 : Leuven) Edited K. Mulongoy and R. Merekx Chichester John Wiley 1993 xiii, 392 p.: ill.; 23 cm. xiii, 392 p.: ill.; 23 cm. 631.46INTs 631.46 SOIL ORGANIC MATTER TROPICS 633/95