Agro-information flow at the village level a survey of communication sources in the adoption process of high-yielding varieties of crops.
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
[New Delhi
s.n.]
1968.
|
| Pynciau: |