1. Making Science Pay: The Economics of Agricultural R&D Policy;Alston,1996
2. Perceived productivity, foregone farm fruitfulness, and rural research resource rationalization;Alston,1995
3. Science Under Scarcity: Principles and Practice for Agricultural Research Evaluation and Priority Setting;Alston,1995
4. Multi-scale characterization of inland valley agro-ecosystems in West Africa;Andriesse;Netherlands Journal of Agricultural Science,1994
5. Using soil survey data for quantitative land evaluation;Bouma;Advances in Soil Science,1989