Sawyer, R.L. Valle Riestra, J. Webster, B. Valverde, C. Fletcher, A.
Strategies for strengthening agricultural research systems the International Potato Center case Report, the impact of research on national agricultural development - The Hague (Países Bajos) 1986 - p. 201-205
Strategies for strengthening agricultural research systems the International Potato Center case Report, the impact of research on national agricultural development - The Hague (Países Bajos) 1986 - p. 201-205