Discharge measurement structures
Working Group on Small Hydraulic Structures.
Wageningen : International Insitute for Land Reclamation and Improvement, 1976.
A framework for land evaluation.
Food and Agriculture Organization of the United Nations. Soil Resources Development and Conservation Service.
Wageningen : International Institute for Land Reclamation and Improvement.
Framework for regional planning in developing countries
Landbouwhogeschool, Wageningen Research Group for Interdisciplinary Planning in Developing Countries.
Wageningen : International Institue for Land reclamation and improvement., 1980.
The future of arid lands.
International AridLands Meetings, Albuquerque (M.Mex.)
Washington, D.C. : American Association for the Advancement of Science, 1956.