Elliott, H. Pardey, P.G. Webster, B. Valverde, C. Fletcher, A.
Global data bases on national agricultural research systems The impact of research on national agricultural development - The Hague (Países Bajos) ISNAR 1987 - p. 235-250
Ilus. Gráf. 2 ref.
Global data bases on national agricultural research systems The impact of research on national agricultural development - The Hague (Países Bajos) ISNAR 1987 - p. 235-250
Ilus. Gráf. 2 ref.