Tectonic and climatic controls on late quaternary sedimentary processes in a neotectonic intramontane basin (The Pitalito Basin, South Colombia) / Jos BakkerLand-use systems analysis / P.M. Driessen, N.T. KonijnThe major soils of the world : lecture notes on their geography, formation, properties and use / P.M. Driessen & R. Dudal (eds)Soils of the 'West Central Site', Niger : HAPEX Sahel / D. Legger, M. van der AaTROPFOR : a computer programme to simulate growth and water use of tropical rain forests / by R.L.H. Poels and W. Bijker