Guide to the economic evaluation of irrigation projects.
Wedi'i Gadw mewn:
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
[Paris]
Organisation for Economic Co-operation and Development
[1973]
|
| Cyfres: | Problems of development
|
| Pynciau: |
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