Farmers' knowledge and perception of improved technology: a study of five farming systems [in Sri Lanka]
1980
Gunawardana, A.M.T. | Wickramasinghe, M.L. | Abeyratne, S.
书目信息
页码
83 p.
语言
英语
注释
32 tables. Summary (En)
类型
Summary; Non-Conventional
团体作者
Agrarian Research and Training Inst., Colombo (Sri Lanka)
1982-06-15
AGRIS AP