The training and visit system and the links between rice research and extension in the Matara district of Sri Lanka /
Seeghers, S.
The training and visit system and the links between rice research and extension in the Matara district of Sri Lanka / S. Seeghers - Hague ISNAAR 1990 - vi,10p Pbk
Agricultural experiment stations
Agricultural extension work
S 542.3.S3 1990
The training and visit system and the links between rice research and extension in the Matara district of Sri Lanka / S. Seeghers - Hague ISNAAR 1990 - vi,10p Pbk
Agricultural experiment stations
Agricultural extension work
S 542.3.S3 1990