Farming Systems Research as on Analytical framework and a Tool For Training, February-1986. (ICRA) Bulletin No. 23)
Farming Systems Research as on Analytical framework and a Tool For Training, February-1986. (ICRA) Bulletin No. 23)
Metlrick, H.; Wessel, M.
- Wageningen. I.C.R.A. 1986
- xi 8pp