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

Wedi'i Gadw mewn:
Manylion Llyfryddiaeth
OCLC:8033671
Prif Awdur: Gunawardana, A. M. T.
Awduron Eraill: Wickramasinghe, M. L. (joint author.), Abeyratne, S. (joint author.)
Iaith:English
Cyhoeddwyd: Colombo : Agrarian Research and Training Institute, 1980.
Cyfres:Research study series (Agrarian Research and Training Institute) ; No. 34.
Pynciau:
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Dogfen y Llywodraeth Monograph

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