TY  - BOOK
AU  - Horton,D.
ED  - International Service for National Agricultural Research.
TI  - Monitoring and evaluating agricultural research : : a source book / 
SN  - 0851988601
PY  - 1993///
CY  - The Hague, Netherlands : 
PB  - International Service for National Agric ultural Research, 
KW  - Agriculture
KW  - Research
N1  -  Includes bibliographical references (p. 213-219)
ER  -