Soil resilience and sustainable land use : proceedings of a symposium held in Budapest, 28 September to 2 October 1992, including the Second Workshop on the Ecological Foundations of Sustainable Agriculture (WEFSA II) / edited by D.J. Greenland and I. Szabolcs. Greenland, D. J. (Dennis James) Szabolcs, Istvan. C.A.B. International. Workshop on the Ecological Foundations of Sustainable Agriculture (2nd :, 1992 : Budapest, Hungary) Sustainable agriculture. Soil management. Soil conservation. Natural resources. Land use, Rural Planning. Rural development Planning. 631.4 20 SOI Includes bibliographies and index. Wallingford : CAB International, c1994. c1994. 1994 Text xiv, 561 p. : eng