Farmers' knowledge and perception of improved technology a study of five farming systems

Bibliographic Details
Main Author: Gunawardana, A. M. T.
Other Authors: Wickramasinghe, M. L. (joint author.), Abeyratne, S. (joint author.)
Format: Book
Language:English
Published: Colombo Agrarian Research and Training Institute 1980.
Series:Research study / Agrarian Research and Training Institute no. 34
Subjects: