Document Towards an International Reference Base for Soil Classification (1er Seminario Cientifico de Pedologia.. (pdf, 569.45 kB) Year of publication 1985 Author(s) Sombroek WG Document tags ISRIC report Excerpt Presented in Spanish at the: "1er Seminario Cientifico de Pedologia para la Region de Centro America y el Caribe", Havana, Cuba, April 1985)