1. Valuing the productivity of agricultural research: Problems and issues;Arndt,1977
2. Efficiency and equity issues in ex ante allocation of research resources;Binswanger;ICRISAT,1977
3. Agricultural research and extension programs;Boyce,1975
4. The productivity and allocation of research: US Agricultural experiment stations;Bredahl;American Journal of Agricultural Economics,1976
5. The contribution of agricultural research to production;Evenson;Journal of Farm Economics,1967