01426nam a2200421 4500 DLU050047930 ##20050616 ##970108s1997 dcua b 000 0 eng 97003416 0821338781 (DLC) 97003416 DLC DLC DLC eng frespa d------ S544.6 .P86 1997 630.7 PU-D Purcell, Dennis Agricultural extension and research : achievements and problems in national systems / Dennis L. Purcell, Jock R. Anderson Washington, D.C. : World Bank, 1997 xxi, 282 p. : ill. ; 28 cm. A World Bank operations evaluation study, 1011-0984 Includes bibliographical references (p. 257-264). Summaries in English, French, and Spanish. World Bank Developing countries Evaluation. Agricultural development projects Evaluation. Agricultural extension work Developing countries Evaluation. National agricultural research systems Developing countries Evaluation. Anderson, Jock R., 1941- 18/2005 12100 DLU True Nguyễn Thị Tố Hạnh G A SH Thư viện Trường Đại học Đà Lạt