TY  - BOOK
AU  - Purcell, Dennis.
AU  - Anderson, Jock.
TI  - Agricultural extension and research: achievements and problems i n national system 
SN  - 0821338781
U1  - 630.715 
PY  - 1997///
CY  - Washington, D.C.
PB  - The World Bank
KW  - Agricultural extension work
KW  - Developing countries
KW  - Evaluation
KW  - National agricultural research systems
KW  - Ev aluation
N1  - Includes bibliographical references (p. 257-264)
ER  -