na INLIS000000000000155 20200804013343 0010-0520000025 Strengthening National Agricultural Research Systems : Policy Issues And Good Practice Derek Byerlee Environmentally And Socially Sustainable Development Series. Rural Development Gary Alex Washington, D.C. : The World Bank, 1998 630.72 630.72 BYE s 0-8213-4173-1 AGRICULTURE RESEARCH GOVERNMENT POLICY DEVELOPING COUNTRIES 200804 0 5578