TY  - BOOK
AU  - Jahnke,Hans E.
TI  - The impact of agricultural research in tropical Africa : : a study of the collaboration between the international and national research systems
AV  - EAF QTO S542.A426J34 1987 
PY  - 1987///
CY  - Washington
PB  - World Bank
KW  - Agricultural research
KW  - International and national research systems
KW  -  Agricultural innovation
ER  -